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Dymatize ISO 100 Hydrolyzed Gourmet Vanilla 2264g - Whey Protein Hydrolysat + Isolat Powder vs Optimum Nutrition Gold Standard Whey Protein Powder Muscle Building Supplements With Glutamine and Amino Acids, French Vanilla Creme, 30 Servings, 900 g, Packaging May Vary, 891 - 908 g

Side-by-side comparison of scores, ingredients, prices and real customer feedback for Dymatize ISO 100 Hydrolyzed Gourmet Vanilla 2264g - Whey Protein Hydrolysat + Isolat Powder and Optimum Nutrition Gold Standard Whey Protein Powder Muscle Building Supplements With Glutamine and Amino Acids, French Vanilla Creme, 30 Servings, 900 g, Packaging May Vary, 891 - 908 g.

Last verified: 07 Apr 2026 · Based on 39 reviews

82
Quick Answer

Dymatize ISO 100 Hydrolyzed Gourmet Vanilla 2264g - Whey Protein Hydrolysat + Isolat Powder scores 82/100 vs Optimum Nutrition Gold Standard Whey Protein Powder Muscle Building Supplements With Glutamine and Amino Acids, French Vanilla Creme, 30 Servings, 900 g, Packaging May Vary, 891 - 908 g at 82.0/100. Dymatize ISO 100 Hydrolyzed Gourmet Vanilla 2264g - Whey Protein Hydrolysat + Isolat Powder wins on effectiveness, ingredient quality. Optimum Nutrition Gold Standard Whey Protein Powder Muscle Building Supplements With Glutamine and Amino Acids, French Vanilla Creme, 30 Servings, 900 g, Packaging May Vary, 891 - 908 g is stronger on value for money and side effects.

How Do the Scores Compare?

Dymatize ISO 100 Hydrolyzed...
Optimum Nutrition Gold Stan...
Dymatize ISO 100 Hydrolyzed Gourmet Vanilla 2264g - Whey Protein Hydrolysat + Isolat Powder
Dymatize ISO 100 Hydrolyzed...
Dymatize
Optimum Nutrition Gold Standard Whey Protein Powder Muscle Building Supplements With Glutamine and Amino Acids, French Vanilla Creme, 30 Servings, 900 g, Packaging May Vary, 891 - 908 g
Optimum Nutrition Gold Stan...
Optimum Nutrition
Overall Score 82 82.0
Effectiveness 87/100
Best
83.0/100
Ingredient Quality 89/100
Best
86.0/100
Value for Money 72/100 74.0/100
Best
Side Effects 85/100 89.0/100
Best
Certifications 77/100 78.0/100
Best
Best Price £87.56 Amazon UK → £31.72 Amazon UK →
Cheapest
Price per Serving £1.17 75 servings N/A
Form Powder Powder
Dose 1 scoop (30g) — 25g protein None
Third-Party Tested ✓ Yes ✗ No
Reviews Analysed 22 17

Dymatize ISO 100 Hydrolyzed Gour...

Pros

  • Delivers 25g of fast-absorbing hydrolyzed whey protein isolate and 2.6g of Leucine per scoop for optimized recovery.
  • Highly digestible formula; multiple reviewers with dairy sensitivities reported a complete lack of bloating or stomach discomfort.
  • Mixes flawlessly in shaker bottles without clumping, resulting in a smooth and pleasant texture.
  • Clean macronutrient profile with minimal fillers, containing just 110 calories and 1g of sugar per serving.

Cons

  • Frequently described by users as overly sweet due to the combination of sucralose and stevia.
  • Reviewers note the flavor profile degrades significantly when mixed with water rather than milk.
  • Pricing is often considered to be on the higher end compared to standard whey proteins unless purchased on sale.
  • Contains soy lecithin and milk, which are common allergens.

Best For

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
View full review →

Optimum Nutrition Gold Standard ...

Pros

  • Industry-leading mixability — dissolves cleanly in water with minimal clumping, even without a blender
  • High protein yield (~24g per serving) with low fat and sugar content, suitable for calorie-controlled diets
  • Consistently reported improvements in muscle recovery and reduced post-workout soreness
  • Whey protein isolate as primary ingredient ensures high purity and lower lactose versus concentrate-based alternatives

Cons

  • Flavour quality is inconsistent — some variants (double chocolate) rated too sweet, and one reviewer noted a batch tasting 'off'
  • French Vanilla Creme described as slightly bland when mixed with water; better suited to milk
  • Occasional fulfilment issues reported (missing scoop, container appearing half-filled)
  • Contains fish and milk allergens — unsuitable for those with relevant sensitivities

Best For

Regular gym-goers and athletes seeking post-workout recovery People on calorie-controlled or high-protein diets Those managing blood sugar who need a low-sugar protein source Beginners looking for a reliable, well-established brand Users who prioritise mixability and daily drinkability
View full review →

What does the data say about Dymatize ISO 100 Hydro... vs Optimum Nutrition Gold...?

Dymatize ISO 100 Hydrolyzed Gourmet Vanilla 2264g - Whey Protein Hydrolysat + Isolat Powder Winner 82/100

Dymatize ISO 100 provides a premium formulation of 25g of hydrolyzed whey protein isolate and 5.5g of BCAAs per serving, specifically engineered for rapid absorption and post-workout recovery.

Effectiveness
Dymatize ISO 100..
87/100
Optimum Nutritio..
83.0/100
Ingredient Quality
Dymatize ISO 100..
89/100
Optimum Nutritio..
86.0/100
Value for Money
Dymatize ISO 100..
72/100
Optimum Nutritio..
74.0/100
Side Effects
Dymatize ISO 100..
85/100
Optimum Nutritio..
89.0/100
Certifications
Dymatize ISO 100..
77/100
Optimum Nutritio..
78.0/100

What are the key differences?

Dymatize ISO 100 Hydrol.. is best for: 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
Optimum Nutrition Gold .. is best for: Regular gym-goers and athletes seeking post-workout recovery, People on calorie-controlled or high-protein diets

Frequently Asked Questions

Which is better, Dymatize ISO 100 Hydrolyzed Gourmet Vanilla 2264g - Whey Protein Hydrolysat + Isolat Powder or Optimum Nutrition Gold Standard Whey Protein Powder Muscle Building Supplements With Glutamine and Amino Acids, French Vanilla Creme, 30 Servings, 900 g, Packaging May Vary, 891 - 908 g?
Dymatize ISO 100 Hydrolyzed Gourmet Vanilla 2264g - Whey Protein Hydrolysat + Isolat Powder scores 82/100 overall while Optimum Nutrition Gold Standard Whey Protein Powder Muscle Building Supplements With Glutamine and Amino Acids, French Vanilla Creme, 30 Servings, 900 g, Packaging May Vary, 891 - 908 g scores 82.0/100. Both score equally overall — the difference comes down to individual dimensions. Dymatize ISO 100 Hydrolyzed Go is best suited for Athletes and bodybuilders seeking rapid amino acid delivery for post-workout recovery and Individuals with mild lactose intolerance who struggle to digest standard whey protein concentrates. Optimum Nutrition Gold Standar is better for Regular gym-goers and athletes seeking post-workout recovery and People on calorie-controlled or high-protein diets.
Is Dymatize ISO 100 Hydrolyzed Gourmet Vanilla 2264g - Whey Protein Hydrolysat + Isolat Powder worth the price compared to Optimum Nutrition Gold Standard Whey Protein Powder Muscle Building Supplements With Glutamine and Amino Acids, French Vanilla Creme, 30 Servings, 900 g, Packaging May Vary, 891 - 908 g?
Dymatize ISO 100 Hydrolyzed Gourmet Vanilla 2264g - Whey Protein Hydrolysat + Isolat Powder costs £87.56 while Optimum Nutrition Gold Standard Whey Protein Powder Muscle Building Supplements With Glutamine and Amino Acids, French Vanilla Creme, 30 Servings, 900 g, Packaging May Vary, 891 - 908 g is £31.72. For value, Dymatize ISO 100 Hydrolyzed Gourmet Vanilla 2264g - Whey Protein Hydrolysat + Isolat Powder scores 72/100 vs Optimum Nutrition Gold Standard Whey Protein Powder Muscle Building Supplements With Glutamine and Amino Acids, French Vanilla Creme, 30 Servings, 900 g, Packaging May Vary, 891 - 908 g's 74.0/100. Optimum Nutrition Gold Standard Whey Protein Powder Muscle Building Supplements With Glutamine and Amino Acids, French Vanilla Creme, 30 Servings, 900 g, Packaging May Vary, 891 - 908 g delivers better value relative to its quality.
Which has fewer side effects?
Dymatize ISO 100 Hydrolyzed Gourmet Vanilla 2264g - Whey Protein Hydrolysat + Isolat Powder scores 85/100 for side effects (higher means fewer reported issues) while Optimum Nutrition Gold Standard Whey Protein Powder Muscle Building Supplements With Glutamine and Amino Acids, French Vanilla Creme, 30 Servings, 900 g, Packaging May Vary, 891 - 908 g scores 89.0/100. Reviewers report fewer side effects with Optimum Nutrition Gold Standard Whey Protein Powder Muscle Building Supplements With Glutamine and Amino Acids, French Vanilla Creme, 30 Servings, 900 g, Packaging May Vary, 891 - 908 g. For certification and testing, Dymatize ISO 100 Hyd scores 77/100 vs Optimum Nutrition Go's 78.0/100. Always consult a healthcare professional before starting any supplement.

Related Product Comparisons

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 comparisons based on publicly available reviews. This is not medical advice. Affiliate links may earn us a commission at no extra cost to you.

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