ON Optimum Nutrition

Founded 1986 · Downers Grove, IL, United States · 149 products · optimumnutrition.com

Certifications

8 certifications
Consumerlab Verified
Informed Sport Verified Source
Labdoor Verified Source
Usda Organic Verified Source
Fda Gmp Inspections Verified Source
Non Gmo Project Verified Source
Nsf Gmp Verified Source
Vegan Certified Verified Source

Violation History

5 incidents
Recall Various nutritional and beverage products2022-07-28Source
Prop 65 Lead2017-03-10Source
Lawsuit Deceptive packaging with excessive empty space ('slack-fill').2015Source
Lawsuit Deceptive claims about the ingredient 'Aminogen' and its ability to improve protein digestion and absorption.2013Source
Fda Warning Unapproved use of stevia and product misbranding.2001-05-07Source
Products by ON Optimum Nutrition
Gold Standard 100% Whey Caramel Macchiato
Gold Standard 100% Whey Caramel Macchiato
Product 70 Brand 92
Gold Standard 100% Whey Chocolate Peanut Butter
Gold Standard 100% Whey Chocolate Peanut Butter
Product 68 Brand 92
Gold Standard Whey 100%
Gold Standard Whey 100%
Product 66 Brand 92
Frequently Asked Questions
Is ON Optimum Nutrition a trustworthy supplement brand?

ON Optimum Nutrition receives a brand trust score of 0/100 in GoodSupp's independent analysis. The company was founded in 1986 and is headquartered in Downers Grove, IL, United States. They hold 8 verified certifications including Consumerlab, Informed Sport, Labdoor, Usda Organic, Fda Gmp Inspections. These certifications are independently verified by GoodSupp and indicate the brand meets recognized quality, purity, and manufacturing standards. Note: ON Optimum Nutrition has 5 historical regulatory incidents on record. These are factored into the overall trust score and are detailed in the violation history section above.

Is ON Optimum Nutrition third-party tested?

Yes. ON Optimum Nutrition holds 8 verified third-party certifications: Consumerlab, Informed Sport, Labdoor, Usda Organic, Fda Gmp Inspections. Third-party testing means an independent laboratory — not the supplement company itself — has verified the product's contents, purity, and/or manufacturing practices. This is one of the strongest indicators of supplement quality because it removes the conflict of interest inherent in self-testing. Not all certifications are equal: NSF International and USP are considered the gold standard, while GMP certification indicates proper manufacturing practices.

What are the best ON Optimum Nutrition supplements?

Based on GoodSupp's quality analysis, the highest-rated ON Optimum Nutrition supplements are: Gold Standard 100% Whey Caramel Macchiato (score: 70/100); Gold Standard 100% Whey Chocolate Peanut Butter (score: 68/100); Gold Standard Whey 100% (score: 66/100). These scores are calculated from ingredient quality, dosage adequacy, bioavailability, label transparency, and inactive ingredient safety. Scores can vary significantly across a brand's product line — a high brand trust score doesn't guarantee every individual product is top-quality.

Where is ON Optimum Nutrition located?

ON Optimum Nutrition is headquartered in Downers Grove, IL, United States. The company was founded in 1986. They currently offer 149 products in their supplement lineup. Their official website is optimumnutrition.com. Manufacturing location may differ from corporate headquarters — look for GMP certification to verify manufacturing quality standards.

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Disclaimer: GoodSupp provides independent supplement quality analysis for informational purposes only. Scores are generated algorithmically based on ingredient profiles, brand certifications, and public records. This is not medical advice. Always consult a healthcare professional before starting any supplement regimen. Product data is sourced from manufacturer labels and public databases. GoodSupp is not affiliated with any supplement brand.