Optimum Nutrition supplements, graded by the human studies

We graded 6 Optimum Nutrition products against the human studies of their ingredients, the dose on each label and what buyers say in their reviews. Each grade belongs to the product and the goal it was graded for: we do not grade how Optimum Nutrition makes, tests or sells its products, and we sell no supplements. Educational, not medical advice.

Products graded
6
Goals graded for
2
Top-ranked for their goal
Tier 2, Researched
Tier 3, Reviewed

The Optimum Nutrition products we graded

Members6 products, A to Z
Optimum Nutrition BCAA 1000 Caps bottle
graded for Muscle and Strength · L-Leucine 500 mg per serving · reviews positive
Optimum Nutrition Creatine bottle
graded for Muscle and Strength · Creatine Monohydrate 5 g per serving · reviews positive · a month
Optimum Nutrition Generic ZMA Capsules bottle
graded for Hormone Balance for Men · Vitamin B6 (as pyridoxine hydrochloride) 10 mg per serving · reviews positive · a month
Optimum Nutrition Gold Standard 100% Casein bottle
graded for Muscle and Strength · Calories 120 per serving · reviews positive · a month
Optimum Nutrition Gold Standard 100% Whey Protein bottle
graded for Muscle and Strength · Protein Blend (Whey Protein Isolate, Whey Protein Concentrate, Whey Peptides) 24 g per serving · reviews positive · a month
Optimum Nutrition Micronized Creatine Monohydrate Powder bottle
graded for Muscle and Strength · Creatine Monohydrate 5 g per serving · reviews positive · a month

Members see each product's tier, its reviews and why. Start My 7-Day Free Trial →

What Optimum Nutrition products were graded for

Each goal links to its page, with every product graded for it
GoalOptimum Nutrition products
Muscle and Strength5
Hormone Balance for Men1

Questions people ask

Members

Is Optimum Nutrition a good brand?

Answer for members.

Which Optimum Nutrition products have the strongest evidence?

Answer for members.

How does Reverse Age Lab grade Optimum Nutrition products?

Answer for members.

Can I take Optimum Nutrition supplements with my meds?

Answer for members.

Members see the answers, checked against their own meds and goals. Start My 7-Day Free Trial →

Educational, not medical advice. Grades come from human studies on PubMed, the dose on each label, store reviews we read ourselves and our biohacker panel, and are updated as new studies arrive. Optimum Nutrition is a trademark of its owner; Reverse Age Lab is not affiliated with it and sells no supplements. How we grade →