Optimum Nutrition ZMA is a dietary supplement providing a blend of zinc, magnesium, and vitamin B6. Each 3-capsule serving delivers 30 mg of zinc, 450 mg of magnesium, and 10.5 mg of vitamin B6. This product is designed to provide these essential minerals and vitamin.
About This Product
ZMA by Optimum Nutrition is a vitamins & minerals supplement containing 3 active ingredients. It has earned an N+ Score of 77/100 (Grade B-).
This product features a fully transparent label with individual ingredient amounts disclosed, and key ingredients are present at clinically effective doses based on peer-reviewed research.
Notable clinical-dose ingredients include Vitamin B6, Magnesium, Zinc.
N+ Score Breakdown
Are key ingredients present at clinically effective doses based on research?
Does the product include all expected ingredients for its supplement category?
Are individual ingredient amounts clearly disclosed without proprietary blends?
Does the formula include a breadth of beneficial compounds from multiple pathways?
Strengths
- +Key ingredients at clinically effective doses
- +Fully transparent label with individual ingredient amounts disclosed
- +3 ingredient(s) at clinical dose levels
Weaknesses
- −No major weaknesses identified
Ingredient Analysis (3 ingredients)
| Ingredient | Amount | Dose Adequacy |
|---|---|---|
| Vitamin B6 | 10.500 mg | Optimal |
| Magnesium | 450.000 mg | High |
| Zinc | 30.000 mg | Optimal |
Clinical ranges based on NIH ODS Fact Sheets and peer-reviewed research. Status indicates whether the amount meets evidence-based thresholds.