Gold Standard 100% Isolate: what buyers say
How the score works
Whey isolate that buyers find tasty and that dissolves quickly; only the chocolate flavour gets the odd criticism.
A plain link to the shop; we get nothing for it. Supplist is owned by simpliSELF B.V., which also sells its own supplements.
AI (Claude) summary of 187 reviews from Optimum Nutrition's web shop, read on 16 October 2026, spot-checked by people. We don't verify ourselves that reviewers are buyers. How we use reviews
What buyers like
- +Many buyers like the taste, especially vanilla, strawberry and chocolate. 58×
- +Many reviewers say it dissolves quickly without clumps. 33×
- +Buyers appreciate that it doesn't taste too sweet or artificial. 13×
What buyers complain about
- –Some find the chocolate flavour too bland, artificial or odd. 4×
- –Buyers find it a bit more expensive than alternatives. 2×
- –A few reviewers notice an unpleasant smell or get foam. 2×
- –One buyer says it dissolves poorly in cold water. 1×
- –A few buyers waited a long time for delivery or received nothing. 2×
Watch out
- !Chocolate can taste bland or artificial; vanilla and strawberry get more praise. 4×
- !It is a dairy product, so not dairy-free. 3×
- !More expensive than many alternatives, although reviewers think it's worth the price. 4×
The number is how many of the 187 reviews we read mention this. We only show points about taste, mixing, packaging, price and reported complaints, not about effects.
| Size | Price | Shop's 'was' price |
|---|---|---|
| 450 g | €29.99 | – |
| 930 g | €72.99 | – |
| 930 g | €72.99 | – |
| 930 g | €72.99 | – |
Prices from Optimum Nutrition's website, including VAT, excluding shipping. The shop's price applies.
The price is being updated. See the current price at Optimum Nutrition.
How the score of 8.3 is made
Frequently asked questions
What do buyers think of Optimum Nutrition Gold Standard 100% Isolate?
Whey isolate that buyers find tasty and that dissolves quickly; only the chocolate flavour gets the odd criticism. Supplist score 8.3 out of 10, number 1 in protein.
What do buyers like most?
Many buyers like the taste, especially vanilla, strawberry and chocolate. (58 of 187 reviews read)
What's the most common complaint?
Some find the chocolate flavour too bland, artificial or odd. (4 of 187 reviews read)
What does Gold Standard 100% Isolate cost per 100 g?
€6.66 at the best-value size, on the day of the last price check.
Other protein
7.7Clear Whey Isolate
- Almost all reviewers find the lemonade flavour tasty and fresh, especially Tropical. 41×
- Several buyers find it too sweet and add extra water. 6×
7.5Gold Standard 100% Whey
- Many buyers like the taste, especially chocolate and vanilla ice cream. 77×
- Some flavours disappoint: cookies and cream, strawberry, hazelnut, peanut butter. 15×
7.2Collageen Poeder
- Almost all reviewers like the fruity lemonade flavour. 42×
- Some find the flavour strong or a bit chemical and dilute it further. 5×
7.1Impact Whey Protein
- Classic flavours like vanilla, chocolate brownie, strawberry and blueberry go down well. 16×
- Some buyers find specials like cinnamon danish chemical or nasty. 23×
Reviews read on 16 October 2026; prices checked on 16 October 2026. Prices in the shop may have changed since. A summary of what buyers say, not medical advice.