ZMA

product on market Capsule Optimum Nutrition 🟢 Safety: 100/100
Brand: Optimum Nutrition
🟢 100/100

This product looks safe

  • No ingredients exceed tolerable upper intake levels
  • 100% of ingredients have research evidence
A Label Compliance Grade

Product Label

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Label Data

3 Capsule(s) Serving Size
60 Servings
Other Combinations Product Type
100% Evidence Coverage

Supplement Facts — Evidence Check

10.5 mg (525% DV)
📊 8.1× RDA — above typical dose (UL: 100 mg) 📚 113 studies (Tier A: 3, B: 35)
RDA 1.3mg This product: 10.5mg UL 100mg
450 mg (113% DV)
📊 Market median: 4002.0mg (1 products) 📚 20 studies (Tier A: 0, B: 2)
This product: 450mg
30 mg (200% DV)
✅ 2.7× RDA — within safe limits 📚 258 studies (Tier A: 6, B: 134)
RDA 11mg This product: 30mg UL 40mg

Other Ingredients

Gelatin Microcrystalline Cellulose Magnesium Stearate Magnesium Oxide Zinc Oxide

Label Claims — Verification

❓ Nutrient
❓ All Other
❓ Structure/Function
All Other (98% of products) Structure/Function (89% of products) Nutrient (43% of products)

Target Groups

Adult (18 - 50 Years)

Product Information

📋 Directions for Use

SUGGESTED USE: MEN: Take 3 capsules before bed. WOMEN: Take 2 capsules before bed.

⚠️ Warnings & Precautions

WARNING: CONSULT YOUR PHYSICIAN BEFORE USING THIS PRODUCT IF YOUR ARE TAKING ANY MEDICATIONS OR ARE UNDER A PHYSICIAN'S CARE FOR MEDICAL CONDITION. NOT FOR USE BY THOSE UNDER THE AGE OF 18 OR WOMEN THAT ARE PREGNANT, TRYING TO GET PREGNANT, OR NURSING.

NOT FOR USE BY THOSE UNDER THE AGE OF 18 OR WOMEN THAT ARE PREGNANT, TRYING TO GET PREGNANT, OR NURSING.

🧪 Formulation Notes

THE TRUE STRENGTH OF ZMA ZMA is a potent combination of Zinc Magnesium, and Vitamin B6.

Additional Information

STORE IN A COOL, DRY PLACE.

V.1.171.0514US 6029518

VITAMIN AND MINERAL SUPPORT

MANUFACTURED IN THE USA This product contains ingredients of international and domestic origin

Product Details

UPC / SKU 7 48927 02171 4
DSLD Entry Date 2016-03-24
Product Type Other Combinations
Form Capsule
Brand Optimum Nutrition
DSLD ID 57570
Data Updated 2026-04-11

Research Evidence

153 Research Sources
55 Avg Quality Score
71 Systematic Review
51 Meta Analysis
19 Rct
6 Clinical Trial
2 Other
2 Regulatory Source
1 Openfda Safety
A Efficacy of vitamin and antioxidant supplements in prevention of cardiovascular disease: systematic review and meta-analysis of randomised controlled trials
Meta Analysis BMJ (Clinical research ed.) 2013
PubMed DOI
A Homocysteine lowering interventions for preventing cardiovascular events
Meta Analysis The Cochrane database of systematic reviews 2009
PubMed DOI
A Intake of vitamin B6, folate, and vitamin B12 and risk of coronary heart disease: a systematic review and dose-response meta-analysis of prospective cohort studies
Meta Analysis Critical reviews in food science and nutrition 2019
PubMed DOI
A Exploring the causal associations of micronutrients on urate levels and the risk of gout: A Mendelian randomization study
Meta Analysis Clinical nutrition (Edinburgh, Scotland) 2024
PubMed DOI
A Pyridoxine (vitamin B6) supplementation during pregnancy or labour for maternal and neonatal outcomes
Meta Analysis The Cochrane database of systematic reviews 2015
PubMed DOI Cochrane
B Prophylactic drug management for febrile seizures in children
Meta Analysis The Cochrane database of systematic reviews 2021
PubMed DOI
B Treatments for Hyperemesis Gravidarum and Nausea and Vomiting in Pregnancy: A Systematic Review
Systematic Review JAMA 2016
PubMed DOI
B The potential role of nutritional components in improving brain function among patients with Alzheimers disease: a meta-analysis of RCT studies
Meta Analysis Neurosciences (Riyadh, Saudi Arabia) 2020
PubMed DOI
B Pyridoxine (vitamin B6) supplementation in pregnancy
Meta Analysis The Cochrane database of systematic reviews 2006
PubMed Cochrane
B Effect of ginger in the treatment of nausea and vomiting compared with vitamin B6 and placebo during pregnancy: a meta-analysis
Meta Analysis The journal of maternal-fetal & neonatal medicine : the official journal of the European Association of Perinatal Medicine, the Federation of Asia and Oceania Perinatal Societies, the International Society of Perinatal Obstetricians 2022
PubMed DOI
View all evidence for Vitamin B6 →

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