50g High Protein Shake Chocolate 500ml
by 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 500ml bottle with no added sugars. Best for Busy professionals needing a grab-and-go protein hit and Post-workout recovery without the hassle of mixing powder.
According to the AIScored 0–100 scoring system, 50g High Protein Shake Chocolate 500ml by Optimum Nutrition scores 67.0/100, ranking #115 out of 174 products in Whey Protein (2026). Strongest category: Side Effects (83.0/100). Weakest: Certifications (38.0/100).
Is 50g High Protein Shake Chocolate 500ml worth buying?
“Optimum Nutrition's 50g High Protein Chocolate shake scores 67/100 partly because it actually tastes like rich chocolate rather than chemicals—a rare quality for an RTD that reviewers genuinely enjoyed. With no added sugars and 50g protein packed into a single 500ml bottle, it's a convenient option for UK gym-goers who won't settle for chalky-tasting convenience.”
What Do Reviewers Say About 50g High Protein Shake Chocolate 500ml?
Sample excerpts from currently available source material used in this product analysis.
"Great. I’ve tried tons of protein shakes, and this one is easily in my top three. The chocolate flavor is rich, not chalky, and it actually tastes like a dessert. The 500ml bottle is super satisfying—keeps me full for hours after the gym. N..."
"Good quality and great tasting shakes. However, pricey in comparison to the alternative protein powder mixed with water for the same benefits in terms of protein consumption. Small, convenient if you need a ready made protein drink, but sco..."
"The only protein shake I’ve found that doesn’t taste synthetic. I use them daily for lunch at work and to get a protein hit."
"Really like this. I paid £20 for 12, that’s one £1.66 for 25g of protein. I don’t think anyone can complain about that if they are looking for a quick hit. Tastes really nice, consistency is great and very easy to drink. Highly recommended"
"Sending customers expired stock is outrageous. Ordered on the 9th June 2025 but the use by date of the shakes that I received are 3/05/2025"
How does 50g High Protein Shake Chocolate 500ml score?
Detailed score breakdown and key findings from our analysis of 12 reviews across 2 sources.
Pros
- +Exceptional taste for an RTD — described as rich, dessert-like, not chalky or synthetic
- +High 50g protein dose per single bottle — among the highest in the RTD category
- +No added sugars and low in fat
- +Highly convenient — no mixing, no measuring, portable
- +Satiating — multiple users report staying full for hours post-consumption
Cons
- -Multiple verified reports of expired stock being shipped — a recurring and serious fulfilment problem
- -Higher cost per gram of protein compared to equivalent powder serving
- -Not third-party tested (e.g. Informed Sport / NSF)
- -Contains multiple allergens: milk, hazelnuts, and mustard — limits accessibility
Best For
Watch Out
- !Check use-by date immediately on receipt — 3 of 12 reviews report receiving expired product
- !Not suitable for hazelnut, milk, or mustard allergy sufferers
- !Not vegan-friendly
- !No third-party testing — relevant for competitive athletes subject to doping controls
What is 50g High Protein Shake Chocolate 500ml?
50g High Protein Shake Chocolate 500ml is a whey protein product by Optimum Nutrition in liquid form, scoring 67.0/100 on AIScored.
- • Chocolate flavoured drink with added milk proteins, with sweetener.
- • UHT treated.
- • 500mlHigh Protein Meets Great Taste50 g HIGH PROTEINNo Added SugarsAs part of Optimum Nutrition’s range of snacking products, our convenient and delicious ready to drink shake delivers 50 g of protein per shake.All with no added sugars* and low in fat.
- • Available in 3 great tasting flavours; Chocolate, Vanilla and Strawberry, from the World’s #1 best-selling Whey Protein Powder.4 Waterside, Citywest Business Campus, Dublin 24, Ireland.
- • Unit 3, Romaldkirk Road, Riverside Park, Middlesbrought TS2 1XA.
Is 50g High Protein Shake Chocolate 500ml Independently Tested?
No Third-Party Testing Visible
We could not find evidence of independent third-party testing for this product. This doesn't mean it's unsafe, but independent verification provides additional assurance.
How We Score Supplements
Our methodology analyses review data, ingredient science, and product information, then scores each product on a 0-100 scale across evidence-based categories:
Effectiveness
How well the product delivers its claimed benefits, based on reviews and ingredient evidence.
Ingredient Quality
Bioavailable forms, clinically effective dosages, clean label, minimal fillers.
Value for Money
Price relative to ingredient quality, dosage count, and effectiveness.
Side Effects Profile
Higher score = fewer side effects. 100 means virtually no adverse reactions reported.
Certifications & Testing
Third-party lab testing, GMP certification, and independent quality verification.
Overall Score
Weighted combination of all factors. Our bottom-line recommendation.
Price History (90 days)
Quick Facts
- Form
- Liquid
- Serving
- 1, 1, 100 ml
- Vegan
- No
Frequently Asked Questions
Is 50g High Protein Shake Chocolate 500ml worth buying in 2026? ▼
What is the best price for 50g High Protein Shake Chocolate 500ml in the UK? ▼
What are the pros and cons of 50g High Protein Shake Chocolate 500ml? ▼
Is 50g High Protein Shake Chocolate 500ml third-party tested? ▼
What the Data Says About Whey Protein
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 research-backed summaries based on publicly available reviews and product information. This is not medical advice. Always consult a healthcare professional before starting any supplement regimen. Affiliate links may earn us a commission at no extra cost to you.
What Are Other Top Whey Protein?
Other top-rated whey protein you might want to compare.
100% Whey Protein Isolate, 93% Protein, Triple-Filtered, Unsweetened, Unflavoured, Soy Free, Low Fat, 23g Protein per Serving, 20 Servings - 500g
Purition
50g High Protein Shake Strawberry 500ml
Optimum Nutrition
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
3XP Whey Protein Powder - Whey, Pea & Hydrolysed Wheat Blend for Lean Muscle Growth - Banana Flavour - 22g Protein • 127kcal Per Serving - 1Kg
Protein Dynamix
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