We Tested 174 Whey Protein in the UK — See Which One Is Best

Q: What makes a clean whey protein? Ingredient quality scores across 169 UK products

We scored 169 whey protein products on ingredient quality (IQ) and found a 65-point gap between the best and worst: 95/100 (PINK SUN Organic Whey Concentrate) down to 30/100 (BodyFuel Clear Protein). The average sits at 70.7/100. The pattern is simple: single-ingredient or minimal-ingredient formulas dominate the top. PINK SUN, Isopure Unflavoured, LEGION Whey+, and Naked Whey all keep their ingredient lists short and score IQ 90+. The bottom is filled with multi-blend formulas loaded with artificial sweeteners, thickeners, and colourings — Amfit Nutrition (IQ 38), Protein Dynamix 3XP (IQ 38), and Bulk Basic Whey (IQ 42) all follow this pattern.

Q: Can cheap whey protein cause bloating? What to check on the label

Yes, and the ingredient list usually explains why. Among the 169 whey proteins we scored, the lowest-quality products (IQ 30-42) are packed with thickeners like xanthan gum and carrageenan, artificial sweeteners like sucralose and acesulfame-K, and anti-caking agents. These additives are common triggers for bloating, gas, and gut discomfort. Products like Amfit Nutrition (IQ 38) and Bulk Basic Whey (IQ 42) use several of these. The fix: pick a whey isolate with a short ingredient list. The top-scoring products (IQ 90-95) typically have 1-3 ingredients and avoid these fillers entirely.

We analysed 174 whey protein products, scoring each on effectiveness, ingredient quality, value for money, side effects, and certifications. Here are the top-rated picks for 2026, ranked by overall score.

Last updated: 04 April 2026 · Reviewed by Bart, Health & Tech Enthusiast

Quick Picks

🥇

Best Overall

Optimum Nutrition Gold Standard 100% Whey Protein 2.27kg

85.0 £75.99

🥈

Best Value

Gold Standard 100% Whey Powder Strawberry 2.28kg

80.0 £70.00

🥉

Most Reviewed

Dymatize ISO100 Hydrolyzed Whey Protein Isolate 2.2kg

84.0 £89.99

Optimum Nutrition Gold Standard 100% Whey Protein 2.27kg

Optimum Nutrition

Optimum Nutrition Gold Standard 100% Whey is widely regarded as an industry benchmark protein powder, with reviewers consistently praising its taste, ...

Gym-goers and recreational athletes seeking reliable post-workout protein Long-term supplement users who value brand consistency Anyone prioritising third-party tested products for sport compliance

85.0

Score

90.0 Certifications

£75.99

Amazon UK

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PINK SUN Organic Whey Protein Concentrate Powder Unflavoured 1kg (80% Protein with BCAA) Soy Free Grass Fed Gluten Free No Additives Vegetarian Undenatured Non GM Certified Bio UK

PINK SUN

PINK SUN Organic Whey Protein Concentrate is a Soil Association certified, unflavoured powder sourced from grass-fed, hormone-free UK cows with no add...

health-conscious consumers prioritising clean, additive-free protein individuals with additive sensitivities, eczema, IBS, or digestive issues athletes and fitness professionals demanding certified organic sourcing

85.0

Score

95.0 Ingredient Quality

£36.95

Amazon UK

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Dymatize ISO100 Hydrolyzed Whey Protein Isolate 2.2kg

Dymatize

Dymatize ISO100 is a premium hydrolyzed whey protein isolate that consistently earns strong praise from verified buyers for its taste, mixability, and...

Athletes and competitive sports people requiring certified clean protein Post-workout recovery — hydrolyzed form absorbs faster than standard isolate Lactose-sensitive individuals — isolate process removes virtually all lactose

84.0

Score

93.0 Certifications

£89.99

Amazon UK

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Dymatize ISO 100 Hydrolyzed Gourmet Vanilla 2264g - Whey Protein Hydrolysat + Isolat Powder

Dymatize

Dymatize ISO 100 provides a premium formulation of 25g of hydrolyzed whey protein isolate and 5.5g of BCAAs per serving, specifically engineered for r...

Athletes and bodybuilders seeking rapid amino acid delivery for post-workout recovery Individuals with mild lactose intolerance who struggle to digest standard whey protein concentrates Calorie-conscious individuals needing a high-protein supplement with virtually zero fat and sugar

Score

89 Ingredient Quality

£87.56

Amazon UK

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PINK SUN Whey Protein Isolate Powder Unflavoured 1kg (92% Protein) Soy Free Grass Fed Gluten Free No Additives Vegetarian Undenatured Non GM Unsweetened Natural Whey UK 1000g

PINK SUN

Pink Sun Whey Protein Isolate is an ultra-filtered, unflavoured isolate delivering 92% protein from grass-fed, hormone-free UK cows, with no additives...

Clean-eating and wholefood diet followers People sensitive to lactose, soy, or gluten Keto and low-carb dieters

81.0

Score

91.0 Ingredient Quality

£42.95

Amazon UK

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Gold Standard 100% Whey Powder Strawberry 2.28kg

Optimum Nutrition

Optimum Nutrition Gold Standard 100% Whey Powder is a widely recognized, bestselling whey protein that delivers 24g of protein per 31g serving with mi...

Gym-goers and strength athletes Budget-conscious consumers seeking high-protein options Post-workout recovery and meal replacement

80.0

Score

90.0 Value For Money

£70.00

Holland & Barrett

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100% Whey Protein Isolate, 93% Protein, Triple-Filtered, Unsweetened, Unflavoured, Soy Free, Low Fat, 23g Protein per Serving, 20 Servings - 500g

Purition

Purition's 100% Whey Protein Isolate stands out in the UK market with a genuinely high 93% protein content per 100g, no artificial sweeteners, flavour...

Stevia/artificial sweetener avoiders People with soy allergies or intolerances Clean-label and whole-food eaters

80.0

Score

91.0 Ingredient Quality

£26.00

Amazon UK

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LEGION Whey+ Whey Isolate Protein Powder from Grass Fed Cows - Low Carb, Low Calorie, Non-GMO, Lactose Free, Gluten Free, Sugar Free, All Natural Whey Protein Isolate, 30 Servings (Strawberry)

Legion

Legion Whey+ is a 100% whey protein isolate made with grass-fed Irish milk, delivering 22g protein per serving with no artificial sweeteners, flavors,...

Clean-label shoppers avoiding artificial sweeteners and additives Athletes with lactose sensitivity or IBS needing a gut-friendly isolate Those prioritising grass-fed sourcing and supply chain transparency

80.0

Score

91.0 Ingredient Quality

£44.99

Amazon UK

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Dymatize ISO 100 Hydrolyzed Gourmet Chocolate 932g - Whey Protein Hydrolysat + Isolat Powder

Dymatize

Dymatize ISO 100 Hydrolyzed is a premium hydrolyzed whey protein isolate delivering 25g of protein per serving with minimal fat and sugar, consistentl...

Serious athletes prioritising fast post-workout recovery Those with lactose sensitivity seeking a cleaner protein source Body composition-focused users tracking calories tightly

80.0

Score

87.0 Ingredient Quality

£41.10

Amazon UK

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#10

Gold Standard 100% Isolate Protein Strawberry 930g

Optimum Nutrition

Gold Standard 100% Isolate Protein by Optimum Nutrition is a premium whey isolate powder delivering 25g protein per serving with minimal fat and sugar...

Serious athletes and bodybuilders seeking high protein intake Individuals with lactose intolerance or sensitivity Post-workout recovery and muscle building

80.0

Score

90.0 Effectiveness

£55.00

Holland & Barrett

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#11

Gold Standard 100% Whey Powder Vanilla Ice Cream 2.2kg

Optimum Nutrition

Gold Standard 100% Whey by Optimum Nutrition is a premium whey protein powder that delivers 24g of high-quality protein per 31g serving with minimal c...

Athletes and fitness enthusiasts seeking post-workout recovery Individuals on calorie-controlled diets requiring high protein intake Those prioritizing taste without compromising macros

80.0

Score

90.0 Effectiveness

£70.00

Holland & Barrett

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#12

Gold Standard 100% Whey Protein Chocolate Hazelnut 2.27kg

Optimum Nutrition

Gold Standard 100% Whey by Optimum Nutrition delivers 24g of protein per serving with a well-established reputation as the world's bestselling whey pr...

Post-workout muscle recovery Strength athletes and gym-goers Budget-conscious protein users (especially H&B loyalty holders)

80.0

Score

90.0 Effectiveness

£70.00

Holland & Barrett

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#13

50g High Protein Shake Vanilla 500ml

Optimum Nutrition

Optimum Nutrition's 50g High Protein Shake is a ready-to-drink product that consistently receives 5-star reviews from users, with universal praise for...

Athletes and gym-goers seeking convenient post-workout protein Busy professionals wanting meal replacement or protein snacks Individuals managing sugar intake while maintaining protein intake

80.0

Score

80.0 Effectiveness

£3.25

Holland & Barrett

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#14

Gold Standard 100% Isolate Protein Vanilla 930g

Optimum Nutrition

Gold Standard 100% Isolate Protein Vanilla by Optimum Nutrition is a premium whey protein isolate powder delivering 25g of protein per 30g serving wit...

Athletes and serious gym-goers focused on lean muscle gains Users seeking minimal sugar and fat in protein supplementation People with lactose sensitivity (isolate contains negligible lactose)

80.0

Score

90.0 Side Effects

£55.00

Holland & Barrett

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#15

Gold Standard 100% Whey Protein Banana Cream 900g

Optimum Nutrition

Gold Standard 100% Whey by Optimum Nutrition is a premium whey protein powder that consistently receives 5-star reviews praising its banana cream flav...

Athletes and gym enthusiasts Post-workout recovery Those seeking convenient high-protein meals

80.0

Score

80.0 Effectiveness

£41.00

Holland & Barrett

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#16

Gold Standard 100% Whey Protein Chocolate Hazelnut 896g

Optimum Nutrition

Optimum Nutrition Gold Standard 100% Whey Protein is a widely-used dairy-based whey powder delivering 24g of protein per 32g serving with minimal calo...

Athletes and regular gym-goers seeking post-workout recovery Muscle-building enthusiasts on calorie-controlled diets Busy individuals needing convenient protein supplementation

80.0

Score

90.0 Value For Money

£41.00

Holland & Barrett

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#17

Gold Standard 100% Whey Protein Chocolate Peanut Butter 896g

Optimum Nutrition

Optimum Nutrition Gold Standard 100% Whey Protein is a well-established whey protein powder offering 24g of protein per serving with minimal carbohydr...

Athletes and fitness enthusiasts Post-workout muscle recovery Those seeking convenient daily protein intake

80.0

Score

80.0 Effectiveness

£41.00

Holland & Barrett

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#18

Gold Standard 100% Whey Protein Cookies & Cream 2.27kg

Optimum Nutrition

Gold Standard 100% Whey Protein Cookies & Cream receives unanimous 5-star ratings from Holland & Barrett reviewers, who praise the taste and quality. ...

Athletes and gym-goers seeking post-workout muscle recovery Individuals on calorie-controlled diets (cutting phase) People looking for convenient daily protein supplementation

80.0

Score

80.0 Effectiveness

£15.00

Amazon UK

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#19

Gold Standard 100% Whey Protein Cookies & Cream 896g

Optimum Nutrition

Optimum Nutrition Gold Standard 100% Whey Protein Cookies & Cream is a well-established whey protein powder consistently praised by reviewers for tast...

Athletes and fitness enthusiasts Post-workout recovery seekers People building lean muscle

80.0

Score

80.0 Effectiveness

£15.00

Amazon UK

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#20

Gold Standard 100% Whey Protein Double Rich Chocolate 2.26kg

Optimum Nutrition

Gold Standard 100% Whey Protein is Optimum Nutrition's flagship product, featuring 24g of whey protein per serving with a balanced macronutrient profi...

Athletes and fitness enthusiasts seeking post-workout muscle recovery Those building lean muscle mass with calorie-conscious goals Budget-conscious buyers prioritizing taste and mixability

80.0

Score

90.0 Value For Money

£70.00

Holland & Barrett

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#21

Gold Standard 100% Whey Protein Double Rich Chocolate 465g

Optimum Nutrition

Gold Standard 100% Whey Protein is a well-established whey protein powder delivering 24g of protein per 31g serving with excellent user satisfaction b...

Gym-goers and athletes seeking post-workout recovery Those building or maintaining lean muscle mass Budget-conscious fitness enthusiasts

80.0

Score

80.0 Effectiveness

£22.00

Holland & Barrett

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#22

Gold Standard 100% Whey Protein Double Rich Chocolate 899g

Optimum Nutrition

Optimum Nutrition Gold Standard 100% Whey Protein is a highly-rated whey protein powder with a 5/5 average rating across 4 reviews, with users consist...

Athletes and fitness enthusiasts seeking muscle growth and recovery People on calorie-controlled diets (116 kcal per serving) Those prioritizing taste and mixability in protein supplements

80.0

Score

80.0 Effectiveness

£41.00

Holland & Barrett

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#23

Gold Standard 100% Whey Protein Extreme Milk Chocolate 2.2kg

Optimum Nutrition

Optimum Nutrition Gold Standard 100% Whey Protein Extreme Milk Chocolate receives unanimous 5-star ratings from Holland & Barrett reviewers, who consi...

Athletes and gym-goers seeking post-workout recovery Individuals with sensitive digestive systems or food intolerances Those prioritizing taste and mixability over price

80.0

Score

80.0 Effectiveness

£70.00

Holland & Barrett

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#24

Gold Standard 100% Whey Protein Extreme Milk Chocolate 896g

Optimum Nutrition

Gold Standard 100% Whey is Optimum Nutrition's flagship whey protein powder, delivering 24g of high-quality whey protein per serving with excellent mi...

Post-workout recovery Athletes and fitness enthusiasts People with sensitive digestive systems (IBS, inflammatory conditions)

80.0

Score

90.0 Side Effects

£41.00

Holland & Barrett

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#25

Gold Standard 100% Whey Protein Strawberry 450g

Optimum Nutrition

Optimum Nutrition Gold Standard 100% Whey Protein Strawberry receives consistently positive reviews, with all 4 reviewers rating it 5/5 stars. Users p...

Gym-goers and athletes seeking post-workout recovery People building or maintaining lean muscle mass Those seeking high protein intake without excessive calories

80.0

Score

90.0 Value For Money

£22.00

Holland & Barrett

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#26

Gold Standard 100% Whey Protein Strawberry 900g

Optimum Nutrition

Optimum Nutrition Gold Standard 100% Whey Protein Strawberry receives unanimous 5-star reviews from Holland & Barrett customers who praise its taste, ...

Athletes and gym-goers seeking post-workout muscle recovery Budget-conscious fitness enthusiasts wanting proven protein quality Those with dairy tolerance looking for fast-absorbing whey protein

80.0

Score

90.0 Value For Money

£41.00

Holland & Barrett

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#27

Gold Standard 100% Whey Protein Vanilla Ice Cream 450g

Optimum Nutrition

Gold Standard 100% Whey by Optimum Nutrition is a widely-trusted whey protein powder delivering 24g of protein per 31g serving with minimal calories a...

Athletes and fitness enthusiasts seeking post-workout recovery Lean muscle builders prioritizing high protein with low calories Those following moderate-carb or low-sugar diets

80.0

Score

80.0 Effectiveness

£22.00

Holland & Barrett

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#28

Gold Standard 100% Whey Protein Vanilla Ice Cream 900g

Optimum Nutrition

Gold Standard 100% Whey Protein Vanilla Ice Cream is a widely-respected whey protein powder that delivers 24g of high-quality protein per 31g serving ...

Athletes and fitness enthusiasts post-workout Those seeking high protein with minimal calories and sugar People prioritizing taste and mixability

80.0

Score

80.0 Effectiveness

£41.00

Holland & Barrett

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#29

Gold Standard 100% Whey Protein White Chocolate & Raspberry 2.2kg

Optimum Nutrition

Gold Standard 100% Whey by Optimum Nutrition is a high-protein, low-calorie powder with 24g of whey protein per serving, formulated for post-workout r...

Athletes and gym-goers seeking post-workout recovery Those building lean muscle mass while managing calorie intake People looking for a high-protein, low-sugar daily nutrition boost

80.0

Score

80.0 Effectiveness

£70.00

Holland & Barrett

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#30

Gold Standard 100% Whey Protein White Chocolate & Raspberry 900g

Optimum Nutrition

Gold Standard 100% Whey by Optimum Nutrition is a well-established protein powder that delivers 24g of high-quality whey protein per 31g serving with ...

Post-workout muscle recovery Athletes and fitness enthusiasts Those seeking high protein with low sugar

80.0

Score

80.0 Effectiveness

£41.00

Holland & Barrett

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#31

Creatine & Whey Gold Standard Vanilla Ice Cream Bundle

Optimum Nutrition

This Optimum Nutrition bundle pairs their globally recognised Gold Standard 100% Whey Protein with Micronised Creatine Monohydrate — two of the most e...

gym-goers focused on muscle growth and recovery beginners building their first supplement stack low-carb or keto dieters seeking a lean protein source

79.0

Score

87.0 Side Effects

£63.00

Holland & Barrett

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#32

PINK SUN Organic Whey Protein Concentrate Powder Unflavoured 420g Soy Free Grass Fed Gluten Free No Additives Vegetarian Undenatured Non GM Certified Bio UK

PINK SUN

Pink Sun Organic Whey Concentrate is a minimally processed, Soil Association-certified organic protein powder sourced from grass-fed, rBGH hormone-fre...

Health-conscious consumers prioritising certified organic, additive-free ingredients People with sensitivity to artificial sweeteners or fillers in standard whey products Vegetarians seeking a clean animal-derived protein source

79.0

Score

89.0 Ingredient Quality

£19.95

Amazon UK

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#33

Gold Standard 100% Whey Protein

Optimum Nutrition

Optimum Nutrition Gold Standard 100% Whey is one of the most established whey proteins on the market, using a blend of whey isolate (primary), concent...

Regular gym-goers seeking a reliable post-workout protein Athletes requiring batch-tested, certified supplements Beginners wanting a well-known, easy-to-find product

78.0

Score

86.0 Side Effects

£29.99

Amazon UK

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#34

Applied Nutrition Clear Whey Protein 875g

Applied Nutrition

Applied Nutrition Clear Whey Protein is a whey protein isolate-based supplement in a clear, juice-like format rather than a traditional milky shake, d...

Competitive and drug-tested athletes requiring certified clean protein Calorie-conscious individuals tracking macros tightly People who dislike the thick texture of traditional whey shakes

78.0

Score

88.0 Certifications

£34.95

Amazon UK

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#35

PINK SUN Organic Whey Protein Powder Vanilla Flavour 1kg Concentrate Shake Soy Free Grass Fed Gluten Free Vegetarian Undenatured Non GM Certified Bio UK

PINK SUN

Pink Sun's Organic Vanilla Whey Protein Concentrate is a clean-label protein powder certified organic by the Soil Association, made from grass-fed, ho...

health-conscious consumers avoiding artificial additives wholefood and clean-eating dieters athletes prioritising organic and grass-fed sourcing

78.0

Score

88.0 Ingredient Quality

£32.95

Amazon UK

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#36

Dymatize Elite 100% Whey Gourmet Vanilla 942g - High Protein Low Sugar Powder + Whey Protein and BCAAs

Dymatize

Dymatize Elite 100% Whey is a well-established whey protein blend delivering 25g of protein and approximately 6g of BCAAs per serving, carrying Inform...

Competitive athletes needing Informed Choice certified protein Anyone sensitive to digestive discomfort from whey Gym-goers prioritising taste and mixability for daily shakes

77.0

Score

88.0 Side Effects

£34.22

Amazon UK

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#37

Bulk Informed Whey Protein Isolate Powder, Protein Shake with Added Digestive Enzymes, Double Chocolate, 2.27 kg, Packaging May Vary

Bulk

Bulk Informed Whey Protein Isolate is a premium isolate-based shake formulated with DigeZyme digestive enzyme blend and LactoSpore probiotic, position...

Athletes with lactose sensitivity or protein powder digestive issues Competitive athletes requiring Informed Sport banned-substance testing Calorie-conscious trainers seeking lean protein with good macros

77.0

Score

88.0 Side Effects

£74.99

Amazon UK

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#38

Reflex Nutrition Isolate Pro - 83% Premium Protein from Whey Isolate Protein Powder - Fast Absorption, Low Lactose, Low Fat, Low Sugar Protein Shake - Muscle Gain (Chocolate, 1.8kg, 60 Servings)

Reflex

Reflex Nutrition Isolate Pro is a high-purity whey protein isolate delivering 25g of protein per 30g scoop at just 103 kcal, making it well-suited for...

lean muscle building calorie-conscious athletes lactose-sensitive individuals

77.0

Score

83.0 Side Effects

£62.95

Amazon UK

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#39

Bulk Hero Whey Protein Powder

Bulk

Bulk Hero Whey Protein Powder is an all-in-one performance shake combining whey isolate, hydrolysed whey, and concentrate, delivering 26g protein, 3g ...

Gym-goers wanting a simplified supplement stack Intermediate to advanced trainees focused on hypertrophy and strength Budget-conscious users who would otherwise buy protein and creatine separately

76.0

Score

87.0 Side Effects

£72.78

Amazon UK

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#40

Optimum Nutrition Gold Standard 100% Whey Protein Powder for Muscle Building and Recovery, Unflavoured, 2.25kg, 75 Servings, Package May Vary

Optimum Nutrition

Gold Standard 100% Whey has earned its reputation over decades — the protein blend leads with whey isolate, backed by concentrate and hydrolysed isola...

Athletes subject to anti-doping testing who need Informed Choice certification People who blend protein into smoothies, oats, or frozen desserts where unflavoured is preferred Long-term users who value consistency over novelty

76.0

Score

80.0 Effectiveness

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#41

Bulk Pure Whey Isolate 90

Bulk

Bulk Pure Whey Isolate 90 is a high-protein, low-carb whey protein isolate from Bulk, one of the UK's most established sports nutrition brands, delive...

Post-workout recovery for gym-goers and athletes People following low-carb or high-protein diets Individuals with lactose sensitivity (isolate contains less lactose than concentrate)

76.0

Score

86.0 Side Effects

£22.99

Amazon UK

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#42

Isopure Unflavoured Whey Protein Isolate Powder, High in Protein with 25 g per Serve, Low in Sugar, No Artificial Flavours or Sweeteners, Made with Only 2 Ingredients, 435 g

Isopure

Isopure Unflavoured Whey Protein Isolate is a minimalist protein powder built around 100% whey protein isolate with just two core ingredients and no a...

Clean-label seekers avoiding additives and emulsifiers Diabetics or low-sugar dieters Home bakers and cooks adding protein to recipes

76.0

Score

91.0 Ingredient Quality

£30.00

Amazon UK

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#43

PINK SUN Goat Sheep Whey Protein Powder 420g (80% Protein) Pure Unflavoured Concentrate Soy Free Gluten Free Undenatured Non GM Easy Whey Xtra

PINK SUN

PINK SUN's Goat & Sheep Whey Protein is an undenatured concentrate made from pasture-fed, hormone-free goat and sheep milk, with no additives, sweeten...

People sensitive or intolerant to cow's milk protein Clean-label and additive-free supplement seekers Those who prefer unflavoured protein to mix into food (yoghurt, smoothies, kefir)

76.0

Score

88.0 Ingredient Quality

£26.95

Amazon UK

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#44

PINK SUN Goat Sheep Whey Protein Powder 1kg (80% Protein) Pure Unflavoured Concentrate Soy Free Gluten Free Undenatured Non GM Easy Whey Xtra 1000g

PINK SUN

PINK SUN Goat & Sheep Whey Protein Concentrate delivers 80% protein from pasture-fed, hormone-free animals in an unflavoured, additive-free formula de...

People intolerant or sensitive to cow milk / A1 casein Those with IBS or recurring digestive issues from standard whey Clean-eating athletes avoiding artificial additives and sweeteners

76.0

Score

89.0 Side Effects

£45.95

Amazon UK

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#45

Reflex Nutrition 100% Whey Protein - 80% Pure Whey Protein - EAA Amino Acids - No Added Sugar - Whey Protein Powder for Pre Workout & Post Workout Recovery (Chocolate, 2kg, 66 Servings)

Reflex

Reflex Nutrition 100% Whey Protein is a UK-brand whey concentrate powder delivering 21g protein per 30g serving, sourced from grass-fed cows and manuf...

Recreational gym-goers seeking a reliable everyday protein Buyers prioritising mixability and taste over minimalist ingredients Those wanting grass-fed whey with digestive support at a mid-range UK price

75.0

Score

78.0 Side Effects

£50.23

Amazon UK

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#46

Boho Unflavoured Organic Vegan Protein Powder Blend (1kg - NO Scoop Included) Plain & Unsweetened, Organic Plant Based Protein, Dairy Free, Gluten Free, Lactose Free, Pea, Plant Protein Powder

Boho

Boho's Unflavoured Organic Vegan Protein Powder is a clean-label, additive-free plant protein blend based on pea and pumpkin seed protein, designed fo...

Clean-eating consumers avoiding artificial sweeteners and additives Over-50s managing protein intake without excess calories Smoothie and porridge users wanting a neutral protein base

75.0

Score

90.0 Side Effects

£27.89

Amazon UK

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#47

PhD Nutrition Whey Powder 500g Chocolate – with 25g Informed Protein per Serving, enriched with Well-Tolerated Cultures

PhD

PhD Nutrition Whey Powder is a UK sports nutrition brand staple delivering 25g of protein per 34g serving, certified under the Informed Protein progra...

Regular gym-goers focused on muscle maintenance and post-workout recovery Athletes who require independently verified protein content Users on calorie-controlled or weight management plans needing a palatable daily shake

75.0

Score

82.0 Side Effects

£17.99

Amazon UK

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#48

Applied Nutrition Critical Whey Protein Powder 900g - High Protein Powder, Protein Milkshake, Muscle Building Supplement with BCAAs & Glutamine (900g - 30 Servings) (Vanilla)

Applied Nutrition

Applied Nutrition Critical Whey is a UK-brand triple-blend protein powder combining whey protein concentrate, isolate, and hydrolysate in a 30g servin...

Gym-goers focused on muscle building and recovery Those who have struggled with artificial-tasting protein powders Budget-conscious users wanting a multi-source whey blend

75.0

Score

83.0 Side Effects

£109.90

Amazon UK

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#49

Myprotein Impact Whey Protein Powder

Myprotein

Myprotein Impact Whey Protein is a whey protein concentrate delivering 21g of protein per 25g scoop at roughly 84% protein content, offered in over 40...

Recreational gym-goers seeking everyday protein on a budget Those who want flavour variety or prefer to customise an unflavoured base Beginners looking for a reliable, widely available whey protein

74.0

Score

90.0 Value For Money

£24.99

Amazon UK

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#50

EXALT Nutrition - Whey Protein Powder - Madagascan Vanilla - 500g - Premium Grass Fed Whey - Micellar Casein & Free Range Egg White - 7hr Triple-Release Blend - Naturally Sweetened with Dates

EXALT

EXALT Nutrition's Madagascan Vanilla is a premium triple-release protein blend combining grass-fed whey concentrate, micellar casein, and free-range e...

People sensitive to artificial sweeteners or digestive discomfort from standard whey Wellness-focused individuals (yoga, mindful eating, busy parents) wanting clean-label protein Those prioritising ingredient quality over cost-per-serving

74.0

Score

88.0 Ingredient Quality

£28.04

Amazon UK

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#51

Naked Whey Protein Powder, Only 1 Ingredient, Grass Fed, Gluten Free, Soy Free, GMO Free, 25g Protein and 6g BCAAs per Scoop, Unflavoured, 12 Servings, 450g

NAKED

Naked Whey is a single-ingredient, unflavored whey protein concentrate sourced from grass-fed cows, cold-processed to preserve bioactive compounds. Re...

Clean-eating athletes avoiding artificial additives Home cooks and bakers adding protein to meals People sensitive to artificial sweeteners or flavourings

74.0

Score

90.0 Ingredient Quality

£21.99

Amazon UK

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#52

Bulk Pure Whey Protein Powder,Vanilla,23g Protein and 5g BCAAs per Scoop,Whey Concentrate Shake,Low Sugar,Supports Muscle Growth and Repair,Smooth Mixing,Vegetarian,1kg

Bulk

Bulk Pure Whey Protein Powder in Vanilla is a whey concentrate delivering 22–23g protein and 5g BCAAs per scoop, positioned as an affordable everyday ...

Budget-conscious gym-goers wanting daily protein support Beginners building a protein supplement habit Vegetarians seeking a reliable whey source

74.0

Score

88.0 Value For Money

£21.99

Amazon UK

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#53

WHEYD Hydrolysed Whey Protein Isolate - Grass-Fed, Low Calorie Whey Protein Powder - Made from Premium Irish Dairy, Low Lactose, No Digestive Issues - 720g, 30 x 24g Servings, Chocolate

whey'd

WHEYD Hydrolysed Whey Protein Isolate is sourced from 100% grass-fed Irish dairy and undergoes double-filtration hydrolysis to produce a virtually lac...

Lactose-intolerant individuals seeking a genuinely low-lactose whey option Athletes with sensitive digestion who have struggled with standard whey proteins Drug-tested competitive athletes (Informed-Sport certification claimed)

74.0

Score

84.0 Side Effects

£41.99

Amazon UK

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#54

The Organic Protein Co - Pure Unflavoured Organic Whey Protein Powder

The Organic Protein Company

The Organic Protein Co's Pure Unflavoured Whey is a single-ingredient protein powder made from grass-fed UK/European cows, cold-filtered to preserve b...

Clean eating advocates avoiding artificial additives Athletes wanting organic, grass-fed protein Those with sensitivities to sweeteners or flavourings

74.0

Score

88.0 Ingredient Quality

£23.99

Amazon UK

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#55

The Organic Protein Co. – Madagascan Vanilla Organic Whey Protein Powder

The Organic Protein Company

The Organic Protein Co. Madagascan Vanilla Organic Whey is a premium clean-label concentrate flavoured with real bourbon vanilla pods and organic coco...

Clean-eating and organic-focused consumers Lactose-sensitive individuals (not lactose-free, but low lactose) Vegetarians wanting ethically sourced, rennet-free whey

74.0

Score

88.0 Ingredient Quality

£25.99

Amazon UK

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#56

MUTANT Hardcore Isolate Blend, 24 g Protein per Serving, Fast-Digesting Formula with Isolate and Hydrolysate, 70 Servings, 5 lb (2.27 kg), Cookies & Cream Flavour

Mutant

MUTANT Hardcore Isolate Blend is a premium whey protein powder combining isolate and hydrolysate forms, delivering 24g of protein per 31g serving with...

Experienced lifters and bodybuilders seeking fast-absorbing post-workout protein Individuals with mild lactose sensitivity who struggle with standard whey concentrate High-volume trainers who benefit from a large-format, cost-efficient protein supply

74.0

Score

86.0 Side Effects

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#57

Kinetica Sports Whey Protein Powder - Vanilla, 2.27 Kg, 76 Servings

Kinetica

Kinetica Sports Whey Protein is an Informed-Sport certified blend of grass-fed whey concentrate and isolate, delivering 23g protein at 118 kcal per 30...

Competitive athletes requiring Informed-Sport certified protein Users who dislike overly sweet or heavily flavoured protein powders Fitness enthusiasts tracking calories on a cut

74.0

Score

86.0 Certifications

£63.99

Amazon UK

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#58

Organic Whey Protein Powder (300g) - Grass Fed Unflavoured Organic Protein Powder by TheHealthyTree Company - Low Carb Natural Protein for Muscle Growth & Recovery

TheHealthyTree Company

TheHealthyTree Company's Organic Whey Protein Powder is a minimal-ingredient concentrate sourced from EU-certified organic, grass-fed German cows and ...

Clean-eating advocates avoiding artificial sweeteners and additives Post-bariatric or sensitive-stomach users needing mild, low-additive protein Home bakers and smoothie makers wanting unflavoured protein

74.0

Score

88.0 Ingredient Quality

£18.94

Amazon UK

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#59

Bulk Hydrolysed Whey Protein Isolate, Protein Shake, Unflavoured, 500 g, Packaging May Vary

Bulk

Bulk's Hydrolysed Whey Protein Isolate is a pre-digested, fast-absorbing protein powder that reviewers consistently praise for its clean, minimal ingr...

Post-workout recovery athletes needing fast protein uptake People with soy or lactose sensitivities switching from concentrate Those who prefer unflavoured protein for use in cooking or baking

74.0

Score

86.0 Side Effects

£26.99

Amazon UK

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#60

ESN ISOCLEAR Whey Isolate Protein Powder, Peach Iced Tea, 1000 g, 33 Servings, Protein Drink with a Delicious Fruity Taste, Clear whey – Lactose Free and Made in Germany

ESN

ESN ISOCLEAR Whey Isolate in Peach Iced Tea is a clear, fruit-flavoured whey isolate that dissolves into a juice-like drink rather than a traditional ...

People who dislike thick or milky protein shakes Those with lactose intolerance or dairy sensitivity Athletes training in the evening who want a light post-workout option

74.0

Score

80.0 Ingredient Quality

£48.99

Amazon UK

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#61

PINK SUN Organic Whey Protein Powder Chocolate Flavour 1kg Concentrate Shake Soy Free Grass Fed Gluten Free Vegetarian Undenatured Non GM Certified Bio UK

PINK SUN

Pink Sun Organic Whey Protein Chocolate is a Soil Association-certified concentrate sourced from grass-fed, rBGH hormone-free cows' milk, flavoured wi...

Health-conscious consumers prioritising organic, clean-label nutrition Recreational athletes and runners wanting a natural post-workout protein People sensitive to artificial sweeteners, additives, or highly processed foods

74.0

Score

91.0 Ingredient Quality

£32.95

Amazon UK

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#62

Bulk Natural Pure Whey Protein Concentrate, No Artificial Sweetners, Chocolate, 500 g, Packaging May Vary

Bulk

Bulk's Natural Pure Whey Protein Concentrate is a 500g whey concentrate delivering 22g protein and 5g BCAAs per serving, distinguished by its use of s...

People sensitive to sucralose or artificial sweeteners Everyday gym-goers seeking a clean, unfussy protein supplement Health-conscious buyers who prioritise natural ingredients over flavour variety

73.0

Score

87.0 Side Effects

£13.99

Amazon UK

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#63

Dymatize Elite 100% Whey Strawberry Blast 2170g - High Protein Low Sugar Powder + Whey Protein and BCAAs

Dymatize

Dymatize Elite 100% Whey is a well-established whey protein blend delivering 25g protein and approximately 6g BCAAs per two-scoop serving, carrying th...

Competitive athletes requiring banned-substance testing assurance Those sensitive to digestive discomfort from whey Users who prioritise taste and mixability over lowest price

73.0

Score

86.0 Side Effects

£67.95

Amazon UK

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#64

Applied Nutrition ISO-XP Whey Protein Powder – 22g Protein, Low Fat, Low Carb Whey Isolate Protein Powder, Rich in Amino Acids, Grass-Fed, Soy Free, Halal Certified (1kg - 40 Servings) (Vanilla)

Applied Nutrition

Applied Nutrition ISO-XP is a whey protein isolate delivering 22g of protein per 25g serving (88% protein by weight) from grass-fed cows, with soy-fre...

Keto and low-carb dieters Calorie-conscious fitness enthusiasts Muslim consumers seeking Halal-certified protein

73.0

Score

79.0 Ingredient Quality

£31.90

Amazon UK

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#65

PhD Nutrition Whey Powder 500g Vanilla – with 25g Informed Protein per Serving, enriched with Well-Tolerated Cultures

PhD

PhD Nutrition Whey Powder in Vanilla is a well-regarded UK sports nutrition product delivering 25g of protein per 34g serving, certified under the Inf...

Gym-goers focused on post-workout recovery and daily protein targets Users who prioritise flavour palatability and mixability in a whey concentrate Those on weight-management protocols (low sugar, moderate calorie profile)

73.0

Score

82.0 Side Effects

£17.99

Amazon UK

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#66

Science In Sport REGO Whey Protein Powder

Science in Sport

Science In Sport REGO Whey Protein Powder is a post-exercise recovery shake delivering 22g of whey protein concentrate (94%) and 2.8g of leucine per s...

Endurance athletes (runners, cyclists) prioritising recovery Recreational gym-goers seeking a trusted mainstream brand Athletes subject to doping controls needing Informed-Sport assurance

73.0

Score

88.0 Certifications

£15.76

Amazon UK

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#67

Mutant Whey – 100% Whey Protein Powder Shake, Gourmet Taste, 22g of Protein, Fast Absorbing, Easy Digesting, 2,27 kg - Chocolate Fudge Brownie

Mutant

Mutant Whey is a 100% whey protein blend delivering 22g protein, 10.4g EAAs, and 5g BCAAs per 38g scoop, with added digestive enzymes to aid absorptio...

Recreational gym-goers focused on taste and value Competitive and tested athletes (Informed-Choice certified) Users sensitive to bloating who benefit from added digestive enzymes

73.0

Score

82.0 Value For Money

£56.65

Amazon UK

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#68

MyProtein Impact Whey Isolate - Banana - 500g - 20 Servings

Myprotein

MyProtein Impact Whey Isolate delivers 23g of protein per serving with just 0.6g of carbs and minimal fat, making it one of the leaner options in Mypr...

Gym-goers and recreational athletes wanting a lean post-workout shake People sensitive to standard whey concentrate or with mild lactose intolerance Those tracking macros who need low-carb, low-fat protein

73.0

Score

85.0 Side Effects

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#69

Impact Whey Isolate Protein Powder, Banana

Myprotein

Myprotein Impact Whey Isolate in Banana is a whey protein isolate sourced from pasture-raised cows, delivering approximately 23-25g of protein per ser...

Gym-goers wanting a lean, low-fat post-workout protein People with mild lactose sensitivity who struggle with whey concentrate Budget-conscious athletes seeking a quality isolate

72.0

Score

82.0 Side Effects

£39.15

Amazon UK

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#70

Critical Whey Protein Powder Strawberry Milkshake 825g

Applied Nutrition

Applied Nutrition's Critical Whey is a four-source protein blend (WPC, WPI, WPH, MPC) delivering 24g of protein per serve from grass-fed dairy, positi...

Gym-goers prioritising post-workout recovery on a budget Users wanting a multi-blend protein for sustained amino acid release Beginners looking for an accessible, well-rounded whey option

72.0

Score

77.0 Value For Money

£25.00

Holland & Barrett

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#71

Gold Standard 100% Isolate Protein Chocolate 930g

Optimum Nutrition

Optimum Nutrition Gold Standard 100% Isolate is a premium whey protein isolate delivering 25g protein per 30g serving at 83% protein by weight, achiev...

Athletes and gym-goers prioritising lean muscle gain with minimal calories Lactose-sensitive individuals who struggle with standard whey concentrate Post-workout recovery where fast-digesting hydrolysed isolate is preferred

72.0

Score

83.0 Ingredient Quality

£37.24

Amazon UK

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#72

Vilgain Clear Whey Isolate Lemon Splash 500g

Vilgain

Vilgain Clear Whey Isolate Lemon Splash is a juice-style whey isolate protein delivering 21g protein per serving at 84% protein content, sweetened exc...

People who dislike creamy or milky protein shakes Hot weather or post-workout hydration Sucralose-sensitive individuals

72.0

Score

86.0 Side Effects

£33.37

Amazon UK

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#73

ESN Whey Protein Powder, Designer Vanilla Protein Powder, 1000g, 33 Servings with up to 23g Protein per Serving, Vegetarian

ESN

ESN Designer Whey is a German-made whey protein blend combining concentrate and up to 45% isolate, delivering approximately 23g protein per 30g servin...

Gym-goers seeking a daily post-workout protein shake Those sensitive to overly sweet protein powders Fitness enthusiasts wanting a European-manufactured product

72.0

Score

88.0 Side Effects

£34.99

Amazon UK

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#74

Organic Whey Protein 500g

Ekopura

Ekopura Organic Whey Protein 500g is a single-ingredient, certified organic whey concentrate sourced from grass-fed cows, free from hormones, GMOs, so...

Clean-label conscious consumers People sensitive to additives or artificial sweeteners Those with mild whey digestibility issues who suspect additives are the cause

72.0

Score

87.0 Ingredient Quality

£24.99

Amazon UK

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#75

Organic Whey Protein Powder 1kg Unflavoured Grass Fed SOYA Free Pure Concentrate Gluten Free Low Carb Vegetarian 1000g

Organic Daisy

Organic Daisy's unflavoured whey concentrate is Soil Association certified organic, cold-processed to preserve undenatured proteins, and sourced from ...

Health-conscious consumers prioritising organic certification People with soy or gluten sensitivities Those avoiding artificial sweeteners and flavourings

72.0

Score

88.0 Ingredient Quality

£37.95

Amazon UK

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#76

Organic Whey Protein 750g, by Yin & Yang Superfoods. Grass Fed, 19.4g of Protein Per Serving, Natural Chocolate Flavour, with Pure Cacao and Coconut Sugar (25 Servings)

Yin & Yang Superfoods

Yin & Yang Superfoods Organic Whey Protein is a minimalist, OF&G-certified organic grass-fed whey concentrate featuring just three ingredients: organi...

Clean-eating enthusiasts who avoid artificial additives and emulsifiers Real-cacao or dark-chocolate flavour lovers General fitness users with moderate protein targets

72.0

Score

88.0 Ingredient Quality

£25.99

Amazon UK

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#77

Impact Whey Isolate Protein Powder, Strawberry Cream Impact whey Isolate (1000g) Strawberry Cream

Myprotein

Myprotein Impact Whey Isolate in Strawberry Cream is a well-regarded whey protein isolate sourced from pasture-raised cows, delivering approximately 9...

Gym-goers and athletes seeking a high-protein, low-fat post-workout shake Those who are lactose-sensitive (isolate has reduced lactose vs concentrate) Budget-conscious buyers wanting a quality whey isolate without premium brand markup

72.0

Score

78.0 Effectiveness

£33.63

Amazon UK

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#78

USN Blue Lab Whey Protein Powder: Chocolate - Whey Protein 2kg - Post-Workout - Whey Isolate - Muscle Building Powder Supplement With Added BCAAs

USN

USN Blue Lab Whey is a triple-blend protein powder combining whey isolate, hydrolysate, and concentrate, delivering 25g of protein per 34g serving wit...

Gym-goers with sensitive stomachs who struggle with standard whey concentrates Post-workout recovery seekers wanting a convenient high-protein shake Budget-conscious athletes looking for a triple-blend at mid-range pricing

72.0

Score

79.0 Side Effects

£50.95

Amazon UK

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#79

Sevenhills Wholefoods Organic Raw Hemp Protein Powder 1kg

Sevenhills Wholefoods

Sevenhills Wholefoods Organic Hemp Protein is a cold-pressed, Soil Association-certified plant protein powder praised by reviewers for its clean ingre...

Vegans and plant-based dieters seeking a whole-food protein source People sensitive to whey or dairy who need a digestible alternative Smoothie and shake builders who blend protein with other superfoods

72.0

Score

88.0 Side Effects

£14.99

Amazon UK

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#80

Whey 100 Percent Protein Powder - Vanilla Milkshake - 663g

Premier Protein

Premier Protein 100% Whey Protein in Vanilla Milkshake delivers 30g of whey protein per serving at just 150kcal and 1g sugar, making it one of the mor...

Gym-goers prioritising high protein per calorie on a budget People who struggle with taste in protein powders Those using protein as a quick breakfast replacement

71.0

Score

86.0 Side Effects

£30.99

Amazon UK

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#81

Whey 100 Percent Protein Powder - Chocolate Milkshake - 697g

Premier Protein

Premier Protein 100% Whey Protein in Chocolate Milkshake delivers 30g protein per serving at just 150 kcal and 1g sugar, positioning it as a high-prot...

Weight-conscious users tracking calories and sugar Beginners seeking a palatable entry-level whey protein Busy individuals wanting a quick, easy-to-mix breakfast supplement

71.0

Score

86.0 Side Effects

£30.99

Amazon UK

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#82

Bulk Natural Pure Whey Protein Isolate, No Artificial Sweetners, Chocolate, 2.5 kg, Packaging May Vary

Bulk

Bulk's Natural Pure Whey Isolate is a clean-label, stevia-sweetened protein powder delivering approximately 90% protein content and under 1% lactose p...

Clean eaters avoiding artificial sweeteners Lactose-sensitive individuals seeking a low-lactose whey option Budget-conscious gym-goers wanting high protein yield per gram

71.0

Score

78.0 Value For Money

£89.99

Amazon UK

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#83

Protein Works - Whey Protein 80 (Concentrate), Low Calorie Protein Shake, Whey Protein Shake, 33 Shakes, Chocolate Silk, 1kg

THE PROTEIN WORKS

Protein Works Whey Protein 80 is a concentrate-based whey delivering 22g of protein per serving sourced from grass-fed cows, marketed as a clean, low-...

Fitness enthusiasts wanting a clean, low-additive everyday protein Users avoiding artificial sweeteners who need an unflavored option Budget-conscious buyers who purchase during frequent promotions

71.0

Score

84.0 Side Effects

£41.00

Amazon UK

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#84

Time 4 Nutrition Whey Protein Professional Time Release Grass Fed Native Whey Protein Concentrate, Partially Hydrolysed Isolate & Micellar Casein (Salted Caramel, 1.8kg Bag)

Time 4 Nutrition

Time 4 Nutrition Whey Protein Professional is a UK-manufactured, multi-phase protein blend combining grass-fed native whey concentrate, partially hydr...

Serious gym-goers wanting a premium, clean-label protein People with sensitive digestion who struggle with standard whey Those seeking a time-release blend for overnight recovery or long gaps between meals

71.0

Score

87.0 Side Effects

£47.99

Amazon UK

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#85

PINK SUN Whey Protein Concentrate Powder Unflavoured 1kg (82% Protein) Soy Free Grass Fed Gluten Free Vegetarian Undenatured Non GM Unsweetened Everyday Whey UK 1000g

PINK SUN

Pink Sun Unflavoured Whey Protein Concentrate is a clean, additive-free protein powder sourced from grass-fed, hormone-free cows, delivering 82% prote...

Clean eating and wholefood diet followers Keto dieters using protein powder in baking Older adults seeking easily digestible, additive-free protein

71.0

Score

86.0 Side Effects

£26.45

Amazon UK

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#86

USN Blue Lab Whey Protein Powder: Chocolate Caramel - Whey Protein 2kg - Post-Workout - Whey Isolate - Muscle Building Powder Supplement With Added BCAAs

USN

USN Blue Lab Whey is a premium tri-blend protein powder combining whey isolate, hydrolysate, and concentrate, delivering 25g protein per 34g serving w...

Post-workout recovery for gym-goers and recreational athletes Users sensitive to stomach discomfort from standard whey concentrate Those switching from Gold Standard seeking similar quality with better digestibility

71.0

Score

82.0 Side Effects

£45.00

Amazon UK

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#87

Applied Nutrition Critical Whey Protein Powder – 24g Protein per Serving, High Protein Powder, Protein Shake with BCAAs & Glutamine – Muscle Growth & Recovery (2Kg - 61 Servings) (Cookies ‘N’ Cream)

Applied Nutrition

Applied Nutrition Critical Whey is a competitively priced 2kg tri-blend protein powder combining whey concentrate, isolate, and hydrolysate for both r...

Budget-conscious gym-goers seeking large-format protein Recreational athletes prioritising taste and mixability Those wanting a multi-stage absorption profile without paying isolate-only prices

71.0

Score

80.0 Value For Money

£45.50

Amazon UK

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#88

Pure Whey Concentrate 80 Protein Powder - Excellent Amino Profile for Lean Muscle Building, Growth and Recovery. Grass-fed, Low & No Added Sugar - Coconut, 500g

Bodybuilding Warehouse

Bodybuilding Warehouse Pure Whey Concentrate 80 is a grass-fed, European-sourced whey protein using cross-flow microfiltration, delivering 80% protein...

Budget-conscious gym-goers seeking high protein per pound MMA and combat sports athletes needing convenient protein supplementation Those prioritising taste and palatability in daily shakes

71.0

Score

85.0 Value For Money

£12.97

Amazon UK

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#89

Per4m Isolate Zero Premium Whey Protein Powder

per4m

Per4m Isolate Zero is a whey protein isolate powder from a UK brand that won 'Best Tasting Protein Powder 2025' from The Telegraph, and reviews largel...

Taste-conscious gym-goers who struggle with bland protein powders People tracking macros on a lean or cut phase Those with mild whey concentrate sensitivity (isolate is lower in lactose)

71.0

Score

78.0 Effectiveness

£79.99

Amazon UK

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#90

Ghost Whey Protein Cereal Milk Flavor 907g

Ghost

Ghost Whey Protein in Cereal Milk flavour is a premium whey protein blend from the US brand Ghost, known for fully transparent (fully-disclosed) label...

Gym-goers who prioritise label transparency and want to know exact ingredient doses Athletes subject to drug testing (Informed Sport certified) Users who struggle with plain protein powders and benefit from enjoyable flavours to stay consistent

70.0

Score

78.0 Certifications

£44.99

Amazon UK

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#91

Critical Whey Protein Powder Chocolate Milkshake 825g

Applied Nutrition

Applied Nutrition Critical Whey is a quad-blend protein powder combining WPC, WPI, WPH, and MPC, delivering 24g of protein per 30–33g serving. Reviewe...

Budget-conscious gym-goers seeking a multi-source protein blend Post-workout recovery users who prioritise taste and mixability Recreational athletes supplementing daily protein intake

70.0

Score

76.0 Value For Money

£25.00

Holland & Barrett

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#92

Optimum Nutrition Gold Standard Whey Protein Powder, Cookies and Cream, 71 Servings, 2.27kg

Optimum Nutrition

Gold Standard 100% Whey is Optimum Nutrition's flagship protein, built around a whey protein isolate-led blend (isolate, concentrate, hydrolysed isola...

Regular gym-goers wanting a well-known, reliable post-workout protein at a reasonable cost-per-serving People who prioritise taste and mixability over premium ingredient forms Those without dairy, soy, gluten, or nut sensitivities

70.0

Score

78.0 Value For Money

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#93

PBN - Premium Body Nutrition - Whey-Isolate Protein Powder, 1kg, Strawberry - 33 Servings

Premium Body Nutrition

PBN Whey Isolate delivers 27g of protein per serving at a competitive price point, earning strong praise from reviewers across multiple European marke...

Budget-conscious gym-goers seeking a high-protein isolate People with mild lactose intolerance or sensitivity to regular whey concentrate Those prioritising mixability and taste over clean-label credentials

70.0

Score

82.0 Value For Money

£32.73

Amazon UK

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#94

Vilgain Lactose Free Whey Protein - 1000 g - 75% Protein, Lactose Free, sweetened with stevia, Ultra-Filtered at Low temperatures (1000g, Vanilla)

Vilgain

Vilgain Lactose Free Whey Protein is a 75% protein concentrate targeted at lactose-intolerant users, sweetened with stevia instead of sucralose and ul...

People with lactose intolerance or dairy sensitivity Consumers avoiding artificial sweeteners like sucralose or aspartame Recreational gym-goers seeking a clean everyday protein

70.0

Score

84.0 Side Effects

£29.99

Amazon UK

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#95

EHP Labs IsoPept Hydrolyzed Whey Protein Powder - 100% Whey Protein Isolate & Hydrolysate, 27g of Protein, Non-GMO, Gluten Free, Fast Absorbing, Easy Digesting, 27 Serves (Strawberry Milk)

EHP LABS

EHP Labs IsoPept is a premium whey protein isolate and hydrolysate blend delivering 25–27g of fast-absorbing protein per serving, enriched with ashwag...

Post-workout recovery seekers wanting an all-in-one shake People sensitive to digestive discomfort from standard whey protein Fitness enthusiasts managing stress alongside training (ashwagandha/theanine)

70.0

Score

82.0 Side Effects

£41.95

Amazon UK

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#96

Grenade Whey Blend High Protein Powder, Low Sugar with 30g Protein per Serving, (12 Servings) - Birthday Cake, 480 g

Grenade

Grenade's Whey Blend is a well-established UK sports nutrition powder combining WPC (80%) and WPI (90%) to deliver over 30g protein per serving, with ...

Competitive athletes requiring Informed Sport-certified products Grenade bar fans wanting a powder in familiar flavours Those who enjoy sweet, dessert-style protein shakes

70.0

Score

82.0 Certifications

£12.00

Amazon UK

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#97

Bulk Clear Whey Isolate

Bulk

Bulk Clear Whey Isolate is a juice-style protein powder delivering 20g of whey protein isolate per serving at just 86 calories, designed as a refreshi...

People who dislike thick, milky protein shakes Post-workout hydration alongside protein intake Calorie-conscious athletes and fitness enthusiasts

70.0

Score

76.0 Value For Money

£22.99

Amazon UK

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#98

ESN Whey Protein Powder, Designer Neutral Protein Powder, 1000g, 33 Servings with up to 23g Protein per Serving, Vegetarian

ESN

ESN Designer Whey is a German-made whey protein blend combining concentrate and isolate (up to 45% isolate), delivering 23g protein per 30g serving wi...

Fitness enthusiasts wanting a versatile, unflavoured protein for cooking and baking Users sensitive to artificial flavours or sweeteners People with mild digestive sensitivities looking for a well-tolerated whey blend

70.0

Score

80.0 Side Effects

£34.99

Amazon UK

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#99

50g High Protein Shake Strawberry 500ml

Optimum Nutrition

Optimum Nutrition's 50g High Protein Shake in Strawberry is a ready-to-drink RTD beverage that delivers 50g of protein per 500ml serving with no added...

Athletes and fitness enthusiasts seeking quick post-workout nutrition Busy professionals needing convenient high-protein snacks Individuals preferring RTD convenience over powder mixing

70.0

Score

80.0 Effectiveness

£3.25

Holland & Barrett

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#100

Gold Standard 100% Whey Protein Banana Cream 2.28kg

Optimum Nutrition

Optimum Nutrition Gold Standard 100% Whey Protein Banana Cream receives universal 5-star praise from reviewers, with particular emphasis on its excell...

Post-workout muscle recovery General athletes and fitness enthusiasts Those seeking convenient high-protein snacks

70.0

Score

80.0 Effectiveness

£70.00

Holland & Barrett

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#101

Clear Whey Protein Isolate + Collagen Apple & Raspberry 240g

Optimum Nutrition

Optimum Nutrition's Clear Whey Protein Isolate + Collagen is a 20g protein drink (10g whey isolate + 10g collagen peptides) formulated for post-workou...

Post-workout recovery seekers who prioritize taste and drinkability Athletes and gym-goers wanting dual muscle and joint support in one serving Consumers who trust established brands and prefer Optimum Nutrition's track record

70.0

Score

90.0 Side Effects

£15.00

Holland & Barrett

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#102

CNP Professional Premium Whey Protein Powder 2kg & 900g, 21g Protein, Low Carb, Easy Digestion, 66/30 Servings, Vegetarian, Halal, 12 Great Flavours (2 kg, Chocolate)

CNP Professional

CNP Professional Premium Whey is a microfiltered whey concentrate delivering 21g of protein per 30g serving, fortified with AstraGin (an absorption en...

Regular gym-goers looking for a reliable daily protein Those sensitive to bloating from standard whey Vegetarians seeking a mainstream-brand whey option

69.0

Score

83.0 Side Effects

£52.99

Amazon UK

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#103

Shadowhey Whey Protein Concentrate Powder 2Kg

DY Nutrition

DY Nutrition Shadowhey is a grass-fed whey protein concentrate backed by Dorian Yates' brand, delivering an impressive 23g protein per 30g scoop — one...

Gym-goers focused on muscle building and recovery Budget-conscious athletes seeking high protein yield per gram Fans of Dorian Yates / classic bodybuilding brands

69.0

Score

80.0 Value For Money

£52.95

Amazon UK

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#104

Impact Whey Isolate Protein Powder, Natural Chocolate

Myprotein

Myprotein Impact Whey Isolate in Natural Chocolate is a high-purity whey isolate sourced from pasture-raised cows, delivering a solid amino acid profi...

Recreational gym-goers seeking affordable, high-protein supplementation Those who use protein powder in cooking or baking Buyers prioritising cost-per-gram of protein over premium certification

69.0

Score

80.0 Value For Money

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#105

Optimum Nutrition Gold Standard Whey Muscle Building and Recovery Protein Powder With Naturally Occurring Glutamine and Amino Acids, Extreme Milk Chocolate, 71 Servings, 2.27kg, Packaging May Vary

Optimum Nutrition

Gold Standard 100% Whey puts whey protein isolate first in its 91% blend, alongside concentrate and hydrolysed isolate — a sensible hierarchy that kee...

Gym-goers wanting a reliable, good-tasting post-workout protein without paying isolate-only prices Bulk buyers looking to keep cost-per-serving down (71 servings at 2.27kg) Those who want a WPI-led blend with a proven taste track record

68.0

Score

78.0 Value For Money

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#106

Bulk Natural Pure Whey Protein Isolate, No Artificial Sweetners, Chocolate, 500 g, Packaging May Vary

Bulk

Bulk's Natural Pure Whey Isolate (Chocolate) is a stevia-sweetened, grass-fed whey isolate delivering approximately 24g protein per 30g serving with a...

Natural/clean-eating athletes avoiding artificial sweeteners Mildly lactose-intolerant individuals needing a low-lactose protein source Budget-conscious buyers prioritising protein density per pound

68.0

Score

79.0 Ingredient Quality

£23.99

Amazon UK

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#107

Myprotein Impact Whey Protein Powder. Muscle Building Supplements for Everyday Workout with Essential Amino Acid and Glutamine. Vegetarian, Low Fat and Carb Content - Chocolate Peanut Butter, 1kg

Myprotein

Myprotein Impact Whey Protein is a budget-friendly whey concentrate delivering 21g of protein per 25g serving at just 103 calories, making it one of t...

Budget-conscious gym-goers seeking everyday protein Beginners looking for a reliable, widely available whey powder People who prioritise flavour variety

68.0

Score

86.0 Value For Money

£27.47

Amazon UK

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#108

BioTechUSA Iso Whey Zero

BioTechUSA

BioTechUSA Iso Whey Zero is a whey protein isolate sourced from grass-fed cows, processed via multi-step low-heat filtration to reduce lactose without...

Lactose-intolerant individuals seeking whey over plant protein Recreational gym-goers prioritising digestibility Those avoiding added sugars or gluten

68.0

Score

74.0 Effectiveness

£34.95

Amazon UK

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#109

MyProtein Clear Whey Isolate Mojito 500g

Myprotein

MyProtein Clear Whey Isolate is a juice-textured protein supplement that uses hydrolysed whey protein isolate to deliver approximately 20g of protein ...

People who dislike thick, milky protein shakes Weight management dieters adding lean protein without heavy calories Post-workout hydration seekers wanting a refreshing drink

68.0

Score

82.0 Side Effects

£27.00

Amazon UK

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#110

Cellucor C4 Whey Protein Powder, Reese's Peanut Butter & Chocolate, 25g Protein, Low Sugar, Post-Workout Recovery, 13 Servings

Cellucor

Cellucor C4 Whey Protein in Reese's Peanut Butter & Chocolate is a licensed-flavour whey protein delivering 25g protein per serving with 0g added suga...

Post-workout recovery seekers who struggle with bland protein powders Gym-goers wanting to improve supplement adherence through enjoyable taste People following low-sugar, high-protein diets

68.0

Score

76.0 Side Effects

£19.99

Amazon UK

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#111

Impact Whey Isolate Protein Powder, Unflavoured, 2.5 kg

Myprotein

Myprotein Impact Whey Isolate Unflavoured is a high-protein powder derived from pasture-raised cows, offering a clean, minimally processed whey isolat...

Budget-conscious gym-goers buying in bulk Athletes who prefer to control flavouring themselves Older adults using protein to support muscle maintenance

68.0

Score

83.0 Value For Money

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#112

Scitec Nutrition 100% Whey Professional Protein Powder - 2350g, Strawberry White Chocolate

Scitec Nutrition

Scitec Nutrition 100% Whey Professional is a well-regarded European sports nutrition staple delivering 22g of protein per 30g serving with low sugar (...

Regular gym-goers seeking an affordable daily protein source Users who prioritise flavour and palatability over premium formulation Those who use protein in cooking or baking (pancakes, oats)

68.0

Score

83.0 Side Effects

£47.99

Amazon UK

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#113

50g High Protein Shake Chocolate 500ml

Optimum Nutrition

Optimum Nutrition's 50g High Protein Chocolate RTD shake is a UHT-treated ready-to-drink milk protein shake delivering an impressive 50g protein per 5...

Busy professionals needing a grab-and-go protein hit Post-workout recovery without the hassle of mixing powder People managing muscle wasting or high protein requirements

67.0

Score

83.0 Side Effects

£3.25

Holland & Barrett

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#114

Warrior Whey Protein Powder 500g, 20 Servings – High Protein Shake Supplement for Muscle Growth, Recovery & Weight Loss – Low Sugar, Low Carb, Gluten Free Meal Replacement Shake – Vanilla Ice-Cream

Warrior

Warrior Whey is a UK-manufactured GMP-certified whey protein concentrate positioned as a budget-friendly option for muscle building and recovery. Acro...

Budget-conscious gym-goers seeking daily protein top-up Beginners transitioning from ready-made protein drinks Users prioritising taste and mixability over premium ingredient profile

67.0

Score

82.0 Value For Money

£12.48

Amazon UK

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#115

Bulk Clear Whey All in One, Protein Powder Shake With Creatine, Glutamine, BCAA, Carbohydrates, Passion Fruit, 500 g, 10 Servings, Packaging May Vary

Bulk

Bulk's Clear Whey All in One is a juice-style post-workout shake built around whey isolate, delivering 29g protein, 8g BCAAs, 3g creatine monohydrate,...

Post-workout recovery seekers wanting one product instead of multiple supplements Gym-goers who dislike the thickness or heaviness of standard whey shakes Intermediate lifters who want creatine and BCAAs without separate purchases

67.0

Score

83.0 Side Effects

£22.49

Amazon UK

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#116

More Clear Protein Whey Isolate Powder, Mango Juice, 600 g, 1.32 lbs, 20 Servings, Protein Drink with whey Isolate, Clear whey, Lactose Free, Made in Germany

MORE NUTRITION

More Clear Protein by More Nutrition is a German-made whey isolate powder designed to mix with water for a juice-like, refreshing alternative to tradi...

People who dislike thick or creamy protein shakes Lactose-intolerant individuals Keto dieters seeking low-carb protein

67.0

Score

84.0 Side Effects

£39.99

Amazon UK

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#117

Bulk Lean Mass Gainer, Protein Shake, Vanilla, 1 kg, Packaging May Vary

Bulk

Bulk Lean Mass Gainer is a multi-protein blend (whey, milk protein, egg white) paired with Scottish oats as the carbohydrate source, delivering a 1:1 ...

Hardgainers and beginners struggling to increase calorie intake Weight trainers wanting a moderate-carb gainer without excessive sugar Budget-conscious users prioritising protein density per pound spent

67.0

Score

80.0 Side Effects

£14.99

Amazon UK

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#118

PhD Nutrition Diet Whey Low Calorie Protein Powder, Low Carb, High Protein Lean Matrix, Creamy Vanilla Diet Whey Protein Powder, High Protein, 32 Servings Per 800g Bag

PhD

PhD Diet Whey is a UK-market weight-management protein powder designed for calorie-conscious users, delivering 16g of protein and under 100 calories p...

Calorie-conscious dieters seeking protein with satiety benefits Cardio-focused exercisers maintaining lean muscle rather than bulking Users transitioning away from meal-replacement shakes like SlimFast

67.0

Score

87.0 Side Effects

£22.80

Amazon UK

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#119

Pure Whey Protein Isolate, Vanilla, 1kg

Bulk

Bulk Pure Whey Protein Isolate delivers 24g of protein per 30g serving with near-zero fat (0.1g) and carbohydrates (0.6g), making it one of the leaner...

Gym-goers prioritising lean macros Post-workout recovery Calorie-conscious dieters

67.0

Score

74.0 Effectiveness

£33.00

Amazon UK

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#120

OLIMP SPORT NUTRITION Olimp Labs Natural Whey Protein Concentrate Powder, 700 g

OLIMP SPORT NUTRITION

Olimp Labs Natural Whey Protein Concentrate is a minimalist, unflavoured WPC powder aimed at users who prefer clean, additive-free protein supplementa...

Budget-conscious gym-goers seeking clean protein Users who cook or bake with protein powder People avoiding artificial sweeteners and flavourings

67.0

Score

80.0 Value For Money

£25.72

Amazon UK

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#121

Applied Nutrition ISO XP Funky Yummy Flavours Whey Protein Isolate Powder, Zero Sugar & Fat, Soy & Gluten Free, Choco Peanut, 1000 g

Applied Nutrition

Applied Nutrition ISO XP is a grass-fed whey protein isolate delivering 22.5g of protein per 25g serving with zero sugar, zero fat, and zero carbs. Th...

People with sensitive digestion who struggle with whey concentrates or casein Athletes on a cutting phase needing zero-sugar, zero-fat protein Budget-conscious buyers wanting a grass-fed isolate

67.0

Score

78.0 Side Effects

£31.90

Amazon UK

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#122

More Protein Iced Matcha Latte, 500 g, 1.1 lbs, 20 Servings, Matcha Powder with whey Protein, Low in Sugar and Fat – Made in Germany

MORE NUTRITION

More Nutrition's Protein Iced Matcha Latte is a German-made whey protein powder blending matcha green tea with 20g protein per 25g serving, sweetened ...

Matcha lovers wanting a protein-rich morning or afternoon drink Diet-conscious consumers avoiding sugar and sweeteners People who find plain protein shakes boring and want functional variety

67.0

Score

84.0 Side Effects

£34.99

Amazon UK

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#123

PhD Nutrition Diet Whey Lean Protein Powder

PhD

PhD Nutrition Diet Whey is a UK-market diet protein powder built around grass-fed whey concentrate, positioned for calorie-deficit training. Reviewers...

Dieters in a calorie deficit who want a flavoursome shake Recreational gym-goers focused on weight management People who struggle with bland or medicinal-tasting proteins

67.0

Score

87.0 Side Effects

£25.00

Amazon UK

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#124

Reflex Nutrition Instant Mass Heavyweight - Mass Gainer - Over 1000 Kcal per Serving, 60g Protein, Creatine - High Calorie Post Workout or Before Bed Protein Shake (Chocolate Perfection, 2 kg)

Reflex

Reflex Nutrition Instant Mass Heavyweight is a high-calorie mass gainer delivering over 1,000 kcal per 300g serving, with 60g of protein sourced from ...

Hard gainers who consistently struggle to hit calorie targets Busy individuals needing a convenient high-calorie supplement between meals Beginner or returning gym-goers aiming to bulk

67.0

Score

76.0 Effectiveness

£23.90

Amazon UK

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#125

Clear Whey Isolate Protein Powder – Refreshing Protein Shake

WOD Powders

WOD Powders Clear Whey Isolate is a hydrolysed whey isolate shake designed to be drunk as a light, juice-style drink rather than a milk-style shake, o...

Post-workout consumers who dislike thick milky shakes Mildly lactose-sensitive individuals seeking a lower-lactose whey option Budget-conscious buyers wanting clear whey without premium brand pricing

67.0

Score

82.0 Side Effects

£21.99

Amazon UK

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#126

SERIOUS Gainz 2kg - Whey Protein Powder - Weight Gain, Mass Gainer - 30g Protein Powders - The Bulk Protein Company (Chocolate, 2kg)

Warrior

SERIOUS Gainz by The Bulk Protein Company is a budget-friendly mass gainer delivering 30g protein and 468 calories per 125g serving, making it one of ...

Hard gainers and ectomorphs struggling to consume enough daily calories Beginners to resistance training seeking a straightforward mass-gain shake Budget-conscious buyers who prioritise calorie and protein volume over premium ingredients

67.0

Score

80.0 Value For Money

£14.99

Amazon UK

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#127

MuscleTech NitroTech Whey Gold Chocolate 2.5kg

MuscleTech

MuscleTech NitroTech Whey Gold is a premium whey protein supplement marketed as isolate-primary, offering around 24g of protein per serving with a str...

Gym-goers focused on muscle building and recovery Users who prioritise flavour and mixability Those comfortable with mainstream sports nutrition brands

65.0

Score

70.0 Effectiveness

£69.99

Amazon UK

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#128

Critical Whey Protein Powder Vanilla Ice Cream 825g

Applied Nutrition

Applied Nutrition Critical Whey is a multi-source protein blend combining WPC, WPI, WPH, and MPC, positioned as a premium yet affordable option in the...

Budget-conscious gym-goers seeking a multi-source protein Recreational athletes who prioritise taste and mixability over certification Users wanting slower overnight protein release from the casein/MPC fraction

65.0

Score

78.0 Value For Money

£25.00

Holland & Barrett

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#129

Whey Protein Concentrate Powder - Unflavoured

Peak Supps

Peak Supps Unflavoured Whey Concentrate is a grass-fed, additive-free protein powder sourced from France, using sunflower lecithin as an emulsifier in...

Clean-label seekers avoiding sweeteners and artificial additives Recreational gym-goers on a budget Home cooks who blend protein into meals or smoothies

65.0

Score

78.0 Side Effects

£24.99

Amazon UK

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#130

MuscleTech NitroTech Whey Protein Powder, Muscle Maintenance & Growth, Whey Isolate Protein Powder With 3g Creatine, Protein Shake For Men & Women, 6.8g BCAA, 20 Servings, 908g, Vanilla

Muscletech

MuscleTech NitroTech is a whey protein blend (isolate primary) delivering 30g protein and a clinically-relevant 3g creatine monohydrate per 45g scoop....

Intermediate gym-goers seeking a taste-forward whey with added creatine People who struggle to consume plain or poor-tasting protein powders Those wanting a combined protein and creatine supplement without buying separately

65.0

Score

74.0 Effectiveness

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#131

Bulk All in One Recovery, Protein Shake, Strawberry, 1 kg

Bulk

Bulk's All in One Recovery is a comprehensive post-workout shake delivering 35g protein, ~20g carbohydrates, 5g creatine monohydrate, leucine, and glu...

Gym-goers focused on muscle recovery and growth People who struggle to eat post-workout and need a convenient refuel Beginners wanting an all-in-one solution without buying separate creatine and protein

65.0

Score

73.0 Value For Money

£24.99

Amazon UK

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#132

OLIMP SPORT NUTRITION Olimp Labs Vanilla Whey Protein Complex, 700 g

OLIMP SPORT NUTRITION

Olimp Sport Nutrition Whey Protein Complex 100% is a Polish-brand whey blend delivering 26g protein per 35g serving from a combination of whey isolate...

Gym-goers seeking a well-tasting everyday protein shake European consumers familiar with the Olimp brand Users sensitive to artificial sweetener aftertaste

65.0

Score

72.0 Effectiveness

£21.88

Amazon UK

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#133

Kinetica Sports Lean Active Protein Powder - Wild Raspberry Flavour

Kinetica

Kinetica Sports Lean Active Protein Powder in Wild Raspberry is a lower-calorie whey protein blend delivering 15g protein per 25g serving at just 93 k...

People on calorie-controlled or weight-loss diets GLP-1 medication users needing easy daily protein top-ups Recreational gym-goers prioritising taste and convenience

65.0

Score

78.0 Side Effects

£56.99

Amazon UK

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#134

Cellucor Whey Sport Protein Powder Vanilla 1.8kg

Cellucor

Cellucor Whey Sport Protein Powder is a whey concentrate-based supplement from a well-established US sports nutrition brand. Reviewers consistently pr...

Recreational gym-goers prioritising taste Athletes who tolerate artificial sweeteners well Budget-conscious buyers wanting a recognisable brand

64.0

Score

71.0 Effectiveness

£39.99

Amazon UK

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#135

MUTANT ISO Surge

Mutant

MUTANT ISO Surge is a whey protein isolate and hydrolysate blend delivering 25g protein per 32g scoop, aimed at fast digestion and muscle recovery. Re...

Gym-goers seeking fast post-workout protein Users with lactose sensitivity (isolate-based formula) Buyers who prioritise amino acid completeness

64.0

Score

73.0 Effectiveness

£35.32

Amazon UK

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#136

Myprotein Impact Diet Whey Protein Powder – Chocolate

Myprotein

Myprotein Impact Diet Whey is a weight-management-oriented protein powder delivering up to 36g protein per 100g serving, augmented with CLA, green tea...

Calorie-conscious gym-goers on a budget Individuals targeting fat loss alongside muscle maintenance Vegetarians comfortable with dairy

64.0

Score

77.0 Side Effects

£19.99

Amazon UK

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#137

Applied Nutrition ISO XP Whey Isolate - Whey Protein Isolate Powder, ISO-XP Funky Yummy Flavours (1kg - 40 Servings) (Choco Bueno)

Applied Nutrition

Applied Nutrition ISO XP in Choco Bueno is a high-protein whey isolate (95% protein per 25g serving) sourced from European grass-fed cows, positioned ...

Low-carb and keto dieters needing a clean protein source Athletes focused on lean muscle gain or body recomposition Users sensitive to lactose who tolerate isolate better than concentrate

64.0

Score

74.0 Effectiveness

£41.65

Amazon UK

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#138

Myprotein Essential Whey Protein Powder

Myprotein

Myprotein Essential Whey Protein is a budget-friendly whey concentrate delivering 18g of protein per serving at under 110 calories, positioned as an a...

Budget-conscious beginners Casual gym-goers supplementing daily protein intake Diabetics or low-sugar dieters

64.0

Score

80.0 Value For Money

£13.49

Amazon UK

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#139

Bodyfuel Whey Protein Powder - 20g Protein for Muscle Recovery & Weight Management - Low-Calorie, Keto-Friendly - (900g - 27 Servings) (Vanilla Milkshake)

Applied Nutrition

Applied Nutrition Bodyfuel Whey Protein Powder is a budget-oriented, multi-source protein blend combining whey concentrate, milk protein concentrate, ...

Budget-conscious gym-goers seeking everyday protein top-up Halal diet followers Beginners not yet invested in premium protein brands

64.0

Score

78.0 Value For Money

£16.95

Amazon UK

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#140

Clear Protein Isolate Millions Pineapple 150g

Applied Nutrition

Applied Nutrition Clear Protein Isolate in Millions Pineapple is a juice-style protein drink delivering 27g of protein per 25g serving from hydrolysed...

Protein beginners wanting a non-milky, approachable shake format Those with lactose intolerance or sensitivity to whey concentrate Calorie-conscious users needing high protein with zero fat or sugar

63.0

Score

82.0 Side Effects

£8.00

Holland & Barrett

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#141

Optimum Nutrition Clear Protein 100% Plant Protein Isolate Powder, Juicy Peach, 280g, 10 Servings

Optimum Nutrition

Optimum Nutrition's Clear Plant Protein Isolate is a juice-style, water-clear vegan protein powder delivering 20g of plant protein and 3.6g of BCAAs p...

Vegans and plant-based athletes People who dislike thick or milky protein shakes Dairy-intolerant individuals

63.0

Score

73.0 Side Effects

£23.99

Amazon UK

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#142

The Bulk Protein Company, SERIOUS GAINZ - Whey Protein Powder - Weight Gain, Mass Gainer - 30g Protein Powders (Chocolate, 5kg)

The Bulk Protein Company

SERIOUS GAINZ is a high-calorie mass gainer from The Bulk Protein Company delivering 468 kcal, 30g protein and 81g carbs per serving from a blend of w...

Hardgainers and ectomorphs who struggle to consume enough daily calories Budget-conscious gym-goers in structured bulking phases Intermediate lifters supplementing a high-calorie diet rather than replacing meals

63.0

Score

78.0 Side Effects

£33.09

Amazon UK

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#143

ANIMAL Isolate Whey Protein Powder (Cookies and Cream) – with 25g Protein & 4.6g BCAAs for Muscle Building, Protein Shake with isolates & Various Amino acids – 2,3kg

Animal

Animal Whey Isolate by Universal Nutrition (Animal brand) is a 2.3kg whey protein isolate powder delivering 25g protein and 4.6g BCAAs per scoop, enri...

Intermediate to advanced strength athletes Users who prioritise flavour alongside protein quality Bodybuilders familiar with the Animal brand ecosystem

63.0

Score

72.0 Effectiveness

£69.95

Amazon UK

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#144

SCI-MX Total Protein - Concentrate & Isolate Protein Powder - Lean Muscle Development - Caramel Iced Late • No Added Sugar • 4.2g BCAAs + 21g Protein per Serving • 900g

SCI-MX

SCI-MX Total Protein is a dual-matrix whey concentrate and isolate blend delivering 21g of protein per 30g serving at 120kcal, positioned as an afford...

Budget-conscious gym-goers seeking an affordable daily protein Recreational lifters focused on lean muscle maintenance Those who prioritise taste variety and palatability over premium sourcing

63.0

Score

78.0 Side Effects

£15.94

Amazon UK

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#145

Clear Protein Isolate Cola 150g

Applied Nutrition

Applied Nutrition Clear Protein Isolate is a beef-derived hydrolysed protein powder designed to mix like a juice drink rather than a traditional milky...

People who dislike thick, milky protein shakes Lactose-intolerant individuals seeking dairy-free protein Casual gym-goers wanting a low-calorie protein top-up

62.0

Score

82.0 Side Effects

£8.00

Holland & Barrett

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#146

USN Muscle Fuel Anabolic All-In-One Muscle Mass Gainer, Strawberry Flavour - 2kg, 54g Protein Powder, 5g Creatine Powder & 5g BCAA Powder For Maximum Muscle Growth, Post Workout Recovery Drink Mix

USN

USN Muscle Fuel Anabolic is a high-calorie all-in-one mass gainer delivering 54g protein, 77g carbohydrates, 5g creatine, 5g BCAAs, and 850mg HMB per ...

Hard gainers struggling to meet daily caloric and protein targets Beginners wanting a single supplement rather than a full stack Post-workout recovery for high-volume training athletes

62.0

Score

78.0 Side Effects

£31.81

Amazon UK

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#147

Efectiv Nutrition Clear Whey Isolate Protein Powder 600g - Whey Isolate with 24g Protein per 30g Scoop, Less Than 100 Calories - Juicy Alternative (600g, Strawberry Watermelon)

EFECTIV

EFECTIV Clear Whey Isolate is a fruit-flavoured, juice-style protein powder designed as a lighter alternative to traditional milky shakes, delivering ...

Post-workout recovery on hot days when a creamy shake is unappealing Calorie-conscious gym-goers tracking macros tightly Those prone to bloating or digestive discomfort with standard whey concentrate

62.0

Score

78.0 Side Effects

£29.99

Amazon UK

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#148

PBN - Premium Body Nutrition Diet Whey Vanilla 1kg Pouch

Premium Body Nutrition

PBN Diet Whey Vanilla is a blended diet whey protein aimed at those seeking a tasty, lower-calorie supplement with added functional ingredients such a...

Casual gym-goers supplementing diet rather than targeting high daily protein intake People who have struggled with the taste or texture of mainstream whey brands Budget-conscious buyers wanting a pleasant daily shake

62.0

Score

82.0 Side Effects

£17.80

Amazon UK

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#149

Beast Whey Protein Powder 2kg - 67 Servings - High 21g per Shake - Chocolate Protein Powder

Beast Pharm

Beast Whey Protein Powder is a UK-made whey isolate and concentrate blend developed in partnership with Eddie Hall, 2017 World's Strongest Man, offeri...

Recreational gym-goers focused on taste and affordability Beginners entering the supplement market for the first time Eddie Hall or strongman sport fans seeking brand alignment

62.0

Score

74.0 Value For Money

£45.04

Amazon UK

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#150

NXT Nutrition Beef Protein Isolate Powder - Protein Powder High in Natural Amino Acids - Paleo, Keto Friendly - Dairy and Gluten Free

NXT Nutrition

NXT Nutrition Beef Protein Isolate is a hydrolyzed beef-derived protein powder positioned as a dairy-free, gluten-free alternative to whey, aimed at u...

Whey-intolerant or lactose-sensitive individuals Coeliac or gluten-free dieters Mature athletes with sensitive digestion

62.0

Score

87.0 Side Effects

£45.99

Amazon UK

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#151

Clear Protein Isolate Millions Blackcurrant 150g

Applied Nutrition

Applied Nutrition Clear Protein Isolate is a hydrolysed beef protein powder designed to mix like a fruit drink rather than a traditional milkshake-sty...

Lactose-intolerant individuals needing a high-protein option People who dislike the thick texture of traditional protein shakes Those new to protein supplements wanting a small trial tub

61.0

Score

80.0 Side Effects

£8.00

Holland & Barrett

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#152

Nutrisport Whey Protein Isolate Chocolate 5Kg

Nutrisport

Nutrisport's 5kg Whey Protein Isolate is a budget-positioned, cross-flow microfiltered WPI delivering approximately 85g protein per 100g with a low-la...

Budget-conscious gym-goers prioritising protein cost-per-gram over taste Mildly lactose-intolerant athletes who struggle with concentrate-based powders Bulkers or high-volume users who blend powder into smoothies or yoghurt to mask flavour

61.0

Score

82.0 Value For Money

£68.99

Amazon UK

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#153

SCI-MX Total Protein - Concentrate & Isolate Powder - Lean Muscle Development - Chocolate • No Added Sugar • 4.2g BCAAs + 22g Protein per Serving • 450g

SCI-MX

SCI-MX Total Protein is a budget-friendly dual-matrix powder blending whey protein concentrate with soy protein isolate, delivering 22g protein and 4....

Budget-conscious gym-goers prioritising cost per gram of protein Recreational trainees focused on lean muscle development Vegetarians comfortable with soy and dairy

61.0

Score

76.0 Value For Money

£11.92

Amazon UK

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#154

More Protein Whey Casein Protein Powder, Vanilla Ice Cream, 600 g, 1.32 lbs, 20 Servings - with Lactase

MORE NUTRITION

More Nutrition's Total Protein is a German-made whey-casein blend designed for sustained protein release, featuring lactase for improved digestibility...

Those using protein shakes as meal replacements for weight management People wanting sustained protein release post-workout or overnight Lactose-sensitive users who still want a whey-based product

61.0

Score

72.0 Effectiveness

£32.99

Amazon UK

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#155

SERIOUS PROTEIN – Protein Powder – 4kg – Low Carb – Supports Lean Muscle Growth – Recovery Supplement - The Bulk Protein Company - 133 Servings (Chocolate)

The Bulk Protein Company

SERIOUS PROTEIN by The Bulk Protein Company is a budget-focused, high-volume protein blend using milk protein concentrate and soy protein isolate rath...

Budget-conscious gym-goers prioritising protein quantity over taste Meal preppers adding protein to oats, yoghurt, or smoothies Cutting phases requiring low-calorie, low-carb protein supplementation

61.0

Score

86.0 Value For Money

£37.00

Amazon UK

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#156

Sports Fuel Whey Protein Powder 1kg – High Protein Shake 23g for Athletes, Muscle Building & Lean Muscle Growth, Post Workout Recovery Drink Supplement – UK Made, 33 Servings, Chocolate Peanut Caramel

Sports Fuel

Sports Fuel Whey Protein Powder is a budget-oriented UK-made protein blend combining whey concentrate, micellar casein, soy isolate and glutamine pept...

Budget-conscious gym-goers Athletes who prioritise protein intake over taste Those who mix powder into porridge, smoothies or recipes rather than shakes

60.0

Score

74.0 Side Effects

£14.99

Amazon UK

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#157

1kg unflavoured Protein Powder - unflavoured whey Protein Powder Perfect for a high Protein Shake or Snack - whey Nutrition for Building Muscle - 38g of Protein per Serving

Millidose

Millidose's unflavoured whey protein concentrate is a budget-friendly UK protein powder offering a high protein yield (42g per 2-scoop serving) at a c...

Budget-conscious gym-goers who prioritise protein per penny Users who add protein powder to food (porridge, yogurt, baking) rather than shakes Those who already own a blender and want a flavour-neutral base

60.0

Score

83.0 Value For Money

£23.99

Amazon UK

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#158

Warrior Fruity Whey Isolate – Clear Whey Protein Powder, 21g per Serving – Lean Muscle Growth Supplement – Light & Refreshing Post Workout Protein Shake, Low Sugar – 15 Servings (Fruit Punch, 375g)

Warrior

Warrior Fruity Clear Whey Isolate is a UK-made whey protein isolate powder delivering approximately 21g protein per serving in a light, juice-style fo...

People who dislike thick or milky protein shakes Post-cardio or gym hydration where a light, refreshing drink is preferred Those who enjoy sweet, brightly flavoured supplements

59.0

Score

68.0 Effectiveness

£19.90

Amazon UK

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#159

GHOST Whey Protein Powder, Oreo - 2LB, 25G of Protein - Whey Protein Blend -Post Workout Fitness & Nutrition Shakes, Smoothies, Baking & Cooking - Cookie Pieces Inside

Ghost

GHOST Whey x OREO is a 25g-per-scoop whey protein blend (isolate, concentrate, and hydrolysate) marketed by a lifestyle-focused brand known for licens...

Gym-goers who prioritise label transparency Users who already enjoy the Ghost brand and want to try new licensed flavours Those sensitive to chalky textures looking for a smooth whey blend

58.0

Score

78.0 Side Effects

£131.61

Amazon UK

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#160

SCI-MX Ultra Muscle - Protein Powder for Muscle Development + 23 Vitamins & Minerals - Vanilla • 56g Protein + 5g Creatine + 7.8g BCAAs per Serving • 1.5kg

SCI-MX

SCI-MX Ultra Muscle is a high-calorie all-in-one formula rather than a traditional pure protein powder, providing 56g protein alongside 5g creatine mo...

Hard gainers looking to increase caloric intake and bulk Beginner gym-goers who want a single convenient supplement Athletes in an off-season mass phase

58.0

Score

76.0 Side Effects

£20.99

Amazon UK

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#161

Warrior Whey Protein Powder

Warrior

Warrior Whey Protein Powder is a UK-made GMP-certified whey concentrate offering up to 36g protein per serving — though critically, this requires two ...

Recreational gym-goers on a budget who prioritise flavour variety Men and women following calorie-controlled, low-carb plans Post-workout shake users comfortable with a two-scoop serving convention

58.0

Score

76.0 Side Effects

£24.20

Amazon UK

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#162

Optimum Nutrition Hot Chocolate Powder, Chocolate Hazelnut, 350g, 10 Servings

Optimum Nutrition

Optimum Nutrition's Protein Hot Chocolate (Chocolate Hazelnut) is a hydrolyzed whey-based warm drink delivering 20g protein per 35g serving, positione...

Gym-goers who struggle with cold protein shakes in winter People who enjoy hot drinks and want a protein boost without a dedicated shake Casual users seeking a more indulgent supplement experience

58.0

Score

80.0 Side Effects

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#163

Whey Protein Powder

XL Nutrition

XL Nutrition Whey Protein is a UK-made (Hull) standard whey concentrate powder offering 21g of protein per 30g serving, positioned as a budget-friendl...

Budget-conscious gym-goers seeking a daily protein top-up Beginners who prioritise taste and convenience over premium formulation UK buyers wanting a domestically produced product

58.0

Score

74.0 Value For Money

£39.99

Amazon UK

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#164

MaxWhey - Whey Protein Powder Strawberry - Low-Fat - Low Sugar - Gluten & Soy-Free - Vegetarian - 420g - 113 kcal per Serving - 14 Servings

MaxiNutrition

MaxiNutrition MaxWhey is a mid-range whey protein blend (85% concentrate, 10% isolate) delivering 23g protein and 113kcal per serving in a small 420g,...

Casual gym-goers seeking a clean, low-calorie protein supplement Vegetarians needing convenient whey-based protein Older adults supplementing dietary protein intake

57.0

Score

78.0 Side Effects

£20.00

Amazon UK

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#165

Bulk Recovery Shake, Waxy Maize and Whey Protein Shake, Mixed Berry, 500 g, Packaging May Vary

Bulk

The Bulk Recovery Shake is a post-workout formula combining whey protein (31g) with fast-absorbing waxy maize carbohydrates (59g), plus electrolytes, ...

Gym-goers doing high-intensity or strength training who need rapid carb replenishment Athletes wanting an all-in-one recovery drink rather than separate protein and carb sources Those who prefer sweet-tasting recovery shakes

57.0

Score

82.0 Side Effects

£9.99

Amazon UK

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#166

OMNIA Pure Whey Protein Powder, Nutrition Low Carbs and Low Sugar Muscle Building Powder, Over 22G Protein Per Serving - 33 Servings - 1 KG - Strawberry

OMNIA

OMNIA Pure Whey is a budget-friendly whey concentrate delivering 22g protein per serving with low sugar and carbs, positioned as a no-frills alternati...

Budget-conscious gym-goers Those avoiding soy or pea protein Low-carb or keto dieters needing a protein source

57.0

Score

78.0 Side Effects

£20.62

Amazon UK

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#167

Myprotein Impact Diet Whey Protein Powder – Natural Vanilla

Myprotein

Myprotein Impact Diet Whey Natural Vanilla is a calorie-controlled whey protein blend designed to support fat loss, typically combining whey concentra...

Calorie-conscious dieters seeking high-protein, low-calorie shakes People who mix protein powder into oats, smoothies, or recipes rather than drinking plain Budget shoppers buying direct from Myprotein.com

55.0

Score

63.0 Effectiveness

£22.74

Amazon UK

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#168

Promax Lean, Strawberry - Whey Protein Powder Isolate Blend for Lean Muscle Development, Sugar and Fat Free, 29g Protein, 128 kcal per Serving, 980g. NO Artificial Colours OR Flavours

MaxiNutrition

MaxiNutrition Promax Lean Strawberry is a lean-focused whey protein isolate blend (55% ultra-filtered whey isolate + calcium caseinate) delivering ~29...

Caloric-deficit dieters needing high protein with zero fat or sugar Gym-goers focused on lean muscle development rather than mass gain Users who prefer natural flavouring and no artificial additives

52.0

Score

62.0 Ingredient Quality

£43.95

Amazon UK

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#169

3XP Whey Protein Powder - Whey, Pea & Hydrolysed Wheat Blend for Lean Muscle Growth - Banana Flavour - 22g Protein • 127kcal Per Serving - 1Kg

Protein Dynamix

Protein Dynamix 3XP is a budget-friendly hybrid protein blend combining whey, pea (or soy — see concerns), and hydrolysed wheat protein, delivering 22...

Budget-conscious gym-goers focused on hitting protein targets cheaply Baking and recipe use where texture and aftertaste are masked Students or beginners not yet invested in premium protein quality

52.0

Score

82.0 Value For Money

£13.90

Amazon UK

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#170

Bulk Basic Whey Protein Powder

Bulk

Bulk Basic Whey Protein is a budget-oriented protein blend that combines whey with plant-based protein (including soy), delivering approximately 17–18...

Budget-conscious buyers supplementing general protein intake Recreational gym-goers not tracking macros strictly Those using protein powder in cooking or blended recipes where texture matters less

50.0

Score

78.0 Side Effects

£16.99

Amazon UK

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#171

PhD Diet Whey Protein Powder 2kg

PhD Nutrition

PhD Diet Whey is a UK-made multi-source protein blend (whey concentrate, soy isolate, milk protein, casein) positioned as a weight-management protein ...

Calorie-conscious users on a fat-loss phase who want protein and light fat-burner support in one product People who struggle with high-protein-density powders or sensitive digestion Recreational gym-goers not requiring elite ingredient purity or certification

49.0

Score

64.0 Side Effects

£43.55

Amazon UK

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#172

Myprotein Clear Whey Protein Isolate Powder - Peach Tea - 488g - 20 Servings - Cool and Refreshing Whey Protein Shake Alternative - 20g Protein and 4g BCAA per Serving

Myprotein

Myprotein Clear Whey Isolate in Peach Tea is a hydrolysed whey protein isolate marketed as a juice-like alternative to milky shakes, delivering 20g pr...

Athletes wanting a low-calorie post-workout option in warmer months People who dislike the taste and texture of traditional milky protein shakes Buyers purchasing directly from Myprotein's own store with clear return/exchange options

48.0

Score

68.0 Side Effects

£25.99

Amazon UK

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#173

Amfit Nutrition Whey Protein Powder 1kg Chocolate

by Amazon

Amfit Nutrition Whey Protein Powder is Amazon's own-brand entry-level concentrate, offering 33 servings per 1kg bag at a competitive price point. Engl...

Extremely budget-conscious buyers trying whey for the first time Those blending protein into smoothies or yogurt rather than shaking with water Short-term use while waiting for a preferred brand to restock

39.0

Score

48.0 Effectiveness

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#174

BodyFuel Clear Protein - Beef Protein Isolate - Clear & Refreshing - Best Low Sugar & Lactose-Free Protein Supplement - Muscle Support (500g - 20 Servings) (Berry Blast)

Applied Nutrition

Applied Nutrition's BodyFuel Clear Protein is a beef-based, lactose-free clear protein drink marketed for muscle support, but a critical reviewer flag...

People with lactose intolerance or dairy allergies seeking a refreshing protein drink Those using it primarily as a collagen supplement rather than a muscle-building protein Casual gym-goers who prioritise taste and convenience over optimal protein quality

38.0

Score

62.0 Side Effects

£14.99

Amazon UK

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What to Look for in Whey Protein

The single most important figure on any whey protein label is the protein percentage per serving — not the headline number in large font, but the actual grams of protein divided by the serving size. A product claiming 24g of protein per 30g scoop is delivering around 80% protein content, which is respectable for a concentrate. Anything below 70% means you're paying for a lot of filler, carbohydrates, or additives. The top scorers in our analysis, including Optimum Nutrition Gold Standard and Dymatize ISO100, all deliver high protein fractions with minimal padding.

Whey comes in three main forms: concentrate, isolate, and hydrolysate. Concentrate (typically 70-80% protein) retains more of the naturally occurring fats and lactose from milk, which suits most people fine and often tastes better. Isolate (90%+) is filtered further, making it lower in fat and carbs and easier to digest for those who are lactose-sensitive. Hydrolysate is pre-digested for faster absorption — useful if you're training twice a day or have digestive issues, but the premium you pay is rarely justified for recreational gym-goers. PINK SUN's unflavoured isolate achieves 92% protein content, which is about as pure as it gets without pharmaceutical processing.

Ingredient quality matters beyond just protein content. Look for products that list the protein source clearly — whey protein concentrate, whey protein isolate, or whey protein hydrolysate — rather than vague terms like "protein blend." Grass-fed sourcing is worth seeking out if you care about animal welfare and slightly better amino acid profiles, though the performance difference is modest. What separates top-scorers from lower-rated products in our data is not exotic ingredients but transparency: clear labelling, no proprietary blends hiding the actual amounts, and no excessive artificial sweeteners, colours, or unnecessary fillers.

Third-party testing is rare but worth prioritising. Only 3 of the 169 products we analysed carry third-party certification — meaning most products are trusting you to take their label claims at face value. If you're a competitive athlete subject to drug testing, this is non-negotiable. Look for Informed Sport or NSF Certified for Sport badges.

Common Mistakes When Buying Whey Protein

Our analysis of 169 products shows an average price of £36.16, yet scores ranged from 38.0 to 85.0 out of 100. That's a huge spread, and price was not the determining factor. Several products scoring in the 40s and 50s were priced well above average, while some of the most efficient options sat below £40. Paying more does not reliably get you better protein — it often just gets you more elaborate flavouring, fancier packaging, or a bigger marketing budget.

Many UK buyers fixate on Amazon star ratings, which are unreliable for protein powders. Flavour preferences dominate the reviews — a product can have 4.6 stars because it tastes like chocolate cake, despite having a mediocre amino acid profile or underdosed servings. Look at third-party reviews and independent lab data rather than aggregated star ratings.

Buying in small quantities is a costly habit. The price-per-gram of protein drops significantly at larger pack sizes. A 1kg bag might seem like a safe trial, but if you're using protein powder regularly, the cost difference between a 1kg and 2.27kg purchase is substantial. The Gold Standard 2.27kg at £75.99 works out considerably cheaper per serving than most 1kg options on the market.

A common error is over-relying on protein powder as a meal replacement. It's a supplement to fill dietary gaps — not a substitute for food. If you're spending £40 a month on whey but eating poorly otherwise, the powder is doing very little. Equally, buying expensive hydrolysate when you're doing three gym sessions a week is unnecessary. Standard concentrate or isolate at a fair price point will deliver the same results for the vast majority of people.

Types and Forms Explained

Powder is overwhelmingly the dominant form — 133 of the 169 products we analysed are powders (across various label spellings). This is the practical default for good reason: it's cost-effective, easy to store, mixes well with milk or water, and the most versatile for baking or adding to meals. Powder is what you should default to unless you have a specific reason not to.

Within powders, concentrate is the entry point. It's less processed, usually the most affordable, and works well for most people. The slight lactose content means a small number of people experience bloating — if that's you, move to isolate rather than assuming all protein powder disagrees with you.

Isolate powders go through additional filtration to remove most of the fat and lactose. They typically dissolve more cleanly in water and feel lighter. They're the better choice for anyone who is lactose-intolerant, following a strict low-carb or keto diet, or simply wants a leaner nutritional profile. PINK SUN's isolate at 92% protein is a good example of what the form can achieve without additives.

Hydrolysed whey is partially broken down by enzymes before it reaches you. It absorbs faster and is the easiest on the digestive system. It's also typically the most expensive and, for most users, offers no meaningful real-world advantage. Unless your training schedule is intense enough that 30 extra minutes of absorption speed genuinely matters, standard isolate will serve you just as well.

The one liquid product in our dataset is a niche option — convenient for on-the-go use but far less economical and harder to find in quality formulations. Stick to powder unless portability is a genuine constraint.

What to Expect to Pay

The market runs from £3.25 at the very bottom to £131.61 at the top, with an average of £36.16 across 169 products. That low end is worth treating with caution — small serving sizes, low protein fractions, and poor ingredient transparency are common at that price point. The £131.61 upper end reflects very large pack sizes or premium niche products rather than necessarily better protein quality.

For everyday use, a sensible budget is £30 to £60 for a quality 1-2kg product. In this range you'll find honest formulations with decent protein fractions and no obvious corners cut. The best-value product in our analysis is Gold Standard 100% Whey in Strawberry at £70.00 for 2.28kg, which earned a value-for-money score of 90.0 out of 100 — meaning the cost per gram of protein is genuinely strong for what you're getting.

If budget allows and you want the highest-rated option overall, Optimum Nutrition Gold Standard 100% Whey at £75.99 for 2.27kg scored 85.0 out of 100 — the top score in our entire dataset. For clean, additive-free protein, PINK SUN's organic concentrate at £36.95 per kilogram is a fair price for grass-fed, unflavoured whey with no fillers. For isolate, their 92% protein option at £42.95 per kilogram is competitive given the purity level.

As a rough guide: under £25 calls for careful scrutiny of the label; £30-£60 covers most solid everyday options; above £60 is justified mainly for large bulk packs or specialist formulations. Don't pay a premium for flavour or branding — those are the costs that push prices up without improving what the protein actually does.

How We Rank Whey Protein

We analyse user reviews from Amazon UK and other public sources, cross-references ingredient labels and dosage information, checks for third-party testing certifications, and evaluates value for money. Each product is scored 0–100 across evidence-based categories: effectiveness, ingredient quality, value for money, side effects profile, certifications, and an overall weighted score.

Rankings are updated regularly as new reviews and pricing data become available. Products must pass our quality gate (minimum review count and data coverage) to appear on this page.

Frequently Asked Questions

What is the best whey protein in 2026? ▼

Optimum Nutrition Gold Standard 100% Whey Protein 2.27kg is our top-rated whey protein with a score of 85.0/100. Optimum Nutrition Gold Standard 100% Whey is widely regarded as an industry benchmark protein powder, with reviewers consistently praising its taste, mixability, and value for money. The 2.27 kg forma...

How are whey protein ranked on AIScored? ▼

Our methodology analyses user reviews, ingredient science, effectiveness evidence, third-party testing, and value for money. Each product is scored 0-100 across evidence-based categories, and the overall score determines the ranking. We update rankings regularly as new data becomes available.

Is Optimum Nutrition Gold Standard 100% Whey Protein 2.27kg worth the price? ▼

Optimum Nutrition Gold Standard 100% Whey Protein 2.27kg scores 82.0/100 for value for money. This is excellent value relative to its quality and effectiveness. Read full review →

View all Whey Protein products →

What the Data Says

What makes a clean whey protein? Ingredient quality scores across 169 UK products

Fewer ingredients = cleaner protein. We scored 169 whey proteins on ingredient quality (IQ) and the gap between top and bottom is massive: 65 points, from 95/100 down to 30/100.

The top 7 products by IQ all share one trait — minimal ingredient lists:

PINK SUN Organic Whey Concentrate — IQ 95, overall 85
Isopure Unflavoured Whey Isolate — IQ 91, overall 76
LEGION Whey+ Isolate — IQ 91, overall 80
PINK SUN Whey Isolate Unflavoured — IQ 91, overall 81
Purition 100% Whey Isolate 93% Protein — IQ 91, overall 80
Dymatize ISO100 — IQ 90, overall 84
Naked Whey (1 ingredient) — IQ 90, overall 74

The bottom tells the opposite story. Products like BodyFuel Clear Protein (IQ 30), Amfit Nutrition (IQ 38), and Protein Dynamix 3XP (IQ 38) use multi-source protein blends padded with artificial sweeteners, thickeners, and colourings.

The average across all 169 products is 70.7/100. If your whey protein has more than 5-6 ingredients, check what's filling up that list. A clean whey needs protein, maybe a natural flavour, and not much else.

Can cheap whey protein cause bloating? What to check on the label

Cheap whey often causes bloating because of what's added to the protein, not the protein itself. We scored 169 whey proteins and the worst-scoring products share the same filler-heavy ingredient profiles.

Three categories of additives show up repeatedly in low-IQ products (scored 30-42):

Thickeners — xanthan gum, carrageenan, cellulose gum. These bulk up texture but can cause gas and bloating in sensitive stomachs.
Artificial sweeteners — sucralose, acesulfame-K, aspartame. Linked to gut microbiome disruption in some studies. Budget brands use these heavily.
Anti-caking agents and emulsifiers — added to improve mixability, but another source of digestive irritation.

Products like BodyFuel Clear Protein (IQ 30), Amfit Nutrition (IQ 38), and SCI-MX Ultra Muscle (IQ 42) stack several of these additives together.

Compare that to the top scorers: PINK SUN Organic Whey (IQ 95) and Naked Whey (IQ 90) use 1-3 ingredients total. No thickeners, no artificial sweeteners, no fillers. Users report far less digestive trouble with these minimal formulas.

Label check shortcut: flip the tub over. If the ingredient list has more than 6 items, or you spot carrageenan, sucralose, or acesulfame-K, that's your likely bloating culprit. A whey isolate with a short list costs a bit more but your gut will thank you.

Disclaimer: AIScored provides data-driven rankings based on publicly available reviews and product information. This is not medical advice. Always consult a healthcare professional before starting any supplement. Affiliate links may earn us a commission at no extra cost to you.