Optimum Nutrition
32 products scored by Formulate's ingredient-level rubric. Brand grade reflects a weighted average across the full lineup.
Scored by the Formulate Research Team · Last reviewed July 2026
How Optimum Nutrition scored
Accurate labels, no proprietary blends hiding doses, consistent sourcing
Ingredient form, bioavailability, dose accuracy across the lineup
Published testing, ingredient origins, full disclosure
USP, NSF, Informed Sport, or comparable third-party testing coverage
New formulations, new forms, research-driven development
Component scores are derived from the product lineup, not from marketing materials. See the methodology page for how each component is computed.
What Optimum Nutrition makes
- 27 Protein
- 3 Creatine
- 1 Amino Acids
- 1 Multivitamins
Top-scoring products
All Optimum Nutrition products (32)
- Micronized Creatine Capsules, 1,250 mgCreatine98
- Micronized Creatine Powder, UnflavoredCreatine97
- Micronized Creatine Powder, Blueberry LemonadeCreatine97
- GOLD STANDARD 100% CaseinProtein90
- BCAA 1000Amino Acids81
- Gold Standard 100% Whey Protein, French Vanilla CremeProtein81
- Gold Standard 100% Whey Protein, Extreme Milk ChocolateProtein81
- Gold Standard 100% Whey Protein, Banana CreamProtein81
- Gold Standard 100% Casein, Creamy VanillaProtein81
- Gold Standard 100% Whey Protein, Delicious StrawberryProtein81
- Gold Standard 100% Whey Protein, Chocolate MaltProtein81
- Gold Standard 100% Casein, Chocolate SupremeProtein81
- Gold Standard 100% Whey Protein, CoffeeProtein81
- Gold Standard 100% Whey Protein, Mocha CappuccinoProtein81
- Gold Standard 100% Whey Protein, Chocolate CoconutProtein81
- Gold Standard 100% Whey Protein, White ChocolateProtein81
- Gold Standard 100% Casein, Cookies & CreamProtein81
- Gold Standard 100% Whey, Strawberries & CreamProtein81
- Gold Standard 100% Whey Protein, Chocolate HazelnutProtein81
- Platinum Hydro Whey, Turbo ChocolateProtein79
- Gold Standard 100% Isolate, Chocolate BlissProtein77
- Gold Standard Pro Gainer, Double ChocolateMultivitamins73
- Gold Standard 100% Whey, Vanilla Ice CreamProtein72
- Gold Standard 100% Isolate, Rich VanillaProtein72
- Gold Standard 100% Whey, Cookies & CreamProtein72
- Gold Standard 100% Whey, Strawberry BananaProtein72
- Gold Standard 100% Whey, Chocolate Peanut ButterProtein72
- Gold Standard 100% Whey, Chocolate MintProtein72
- Gold Standard 100% Plant Protein, Creamy VanillaProtein71
- Gold Standard 100% Plant Protein, Rich Chocolate FudgeProtein71
- Gold Standard 100% Whey Protein, Double Rich ChocolateProtein70
- Gold Standard 100% Whey, Rocky RoadProtein48
Optimum Nutrition: frequently asked questions
How does Formulate grade Optimum Nutrition?
Formulate grades Optimum Nutrition by aggregating the ingredient-level scores of all 32 Optimum Nutrition products it has analyzed — weighing dose accuracy, ingredient form, transparency, and third-party testing. Optimum Nutrition's overall brand grade is D- (62/100). It is not a paid or sponsored ranking.
Is Optimum Nutrition third-party tested?
Optimum Nutrition scores 59/100 on third-party verification — meaning third-party testing coverage is limited across its lineup. Check individual product pages for which specific products are certified.
What is Optimum Nutrition's best supplement?
Micronized Creatine Capsules, 1,250 mg is Optimum Nutrition's highest-scoring product on Formulate at 98/100 (grade A).
What does Optimum Nutrition make?
Formulate has scored 32 Optimum Nutrition products, including 27 Protein, 3 Creatine, 1 Amino Acids, 1 Multivitamins.
About the grading
Every Optimum Nutrition product above is scored on dose accuracy, ingredient form, certifications, transparency, and third-party testing. The brand grade aggregates those product scores — it isn't a marketing claim or a pay-for-play ranking. See the methodology page for the full rubric.