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Optimum Nutrition
Optimum Nutrition is known for Gold Standard whey. The October 2026 Informed-Sport list names an Elite series: plant protein, BCAA, pre-workout, Serious Mass, 100% whey, micronised creatine, and Essential Amino Energy. The Informed-Choice list names a wider set of Gold Standard whey, casein, creatine, and pre-workout SKUs, some of them limited to a region. Region notes are kept in the product name.
Checked 15 October 2026. 18 products below. Programs: Informed Sport, Informed Choice. A seal applies to the named product, not to every bottle this brand sells. Lists change; use the certifier link before you treat a seal as current.
Which certifications, and where to recheck them
- Informed Sport — These names are on the October 2026 Informed-Sport banned-substance list published by LGC.
- Informed Choice — These names are on the October 2026 Informed-Choice banned-substance list published by LGC.
Products on the official list
| Product | Certification | Ingredient page |
|---|---|---|
| Gold Standard Plant - Elite Series | Informed Sport | — |
| Gold Standard BCAA Train + Sustain - Elite Series | Informed Sport | BCAAs (standalone) |
| GOLD STANDARD PRE WORKOUT - ELITE SERIES | Informed Sport | — |
| Serious Mass - Elite Series | Informed Sport | — |
| GOLD STANDARD 100% WHEY ELITE SERIES | Informed Sport | Whey protein |
| Micronised Creatine Powder - Elite Series | Informed Sport | Creatine monohydrate |
| Essential Amino Energy - Elite Series | Informed Sport | — |
| ON Gold Standard 100% Whey | Informed Choice | Whey protein |
| ON Micronised Creatine Powder | Informed Choice | Creatine monohydrate |
| ON Gold Standard 100% Casein (USA) | Informed Choice | Casein protein |
| Gold Standard 100% Whey (EU) | Informed Choice | Whey protein |
| ON Gold Standard Isolate | Informed Choice | — |
| ON Creatine+ | Informed Choice | Creatine monohydrate |
| ON Platinum Creatine Plus | Informed Choice | Creatine monohydrate |
| ON Naturally Flavored 100% Whey Gold Standard | Informed Choice | Whey protein |
| ON Essential Amino Energy (USA/India) | Informed Choice | — |
| ON Serious Mass (US) | Informed Choice | — |
| ON Serious Mass (CAN) | Informed Choice | — |
Supplement pages
These links go to the ingredient pages, which describe the evidence. The certification above is about the named product, not about whether the ingredient works.
Other checked brands
- Momentous NSF Certified for Sport, Informed Sport
- AG1 NSF Certified for Sport, Informed Sport, Informed Choice
- NOW Informed Sport
- Kaged Informed Sport
- Myprotein Informed Sport, Informed Choice
- Kinetica Informed Sport
Full verified-brands directory · What these seals do and do not mean