Home/ Supplements/ Vitamin B6/ ZMA

ZMA

product on market Capsule Optimum Nutrition Safety: 87/100
87/100

This product is generally safe

  • Magnesium: 450mg is 1.3× the Tolerable Upper Intake Level (350mg)
  • 100% of ingredients have research evidence
C Label Compliance Grade

What the Evidence Says

✨ AI-generated · Qwen 3.6 · grounded in 1 source · methodology

Zinc and magnesium are commonly used to support muscle function and hormonal health, while vitamin B6 aids in protein metabolism. There is moderate evidence for these ingredients supporting sleep quality and recovery in deficient individuals. However, overall evidence coverage for this specific combination is limited.

AI-generated summary based on research evidence. Not medical advice.

Alerts

Safety Alerts

Magnesium: 450mg is 1.3× the Tolerable Upper Intake Level (350mg)

Label

Product Label

Label for ZMA
Open Full PDF View on NIH DSLD →
Details

Label Data

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

Supplement Facts — Evidence Check

10.5 mg (525% DV)
8.1× RDA — above typical dose (UL: 100 mg) 114 studies (A:3, B:35)
450 mg (113% DV)
Exceeds UL by 1.3× (UL: 350 mg) 316 studies (A:8, B:159)
30 mg (200% DV)
2.7× RDA — within safe limits 263 studies (A:6, B:134)

Other Ingredients

Gelatin Microcrystalline Cellulose Magnesium Stearate Magnesium Oxide Zinc Oxide
Claims

Label Claims — Verification

Unverified Nutrient
Unverified All Other
Unverified Structure/Function
Info

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

Metadata

Product Details

UPC / SKU7 48927 02171 4
DSLD Entry Date2016-03-24
Product TypeOther Combinations
FormCapsule
BrandOptimum Nutrition
DSLD ID57570
Data Updated2026-04-11
Research

Research Evidence

153
Research Sources
55
Avg Quality
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
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
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 →
Compare

Similar Products

Water Ease
Designs for Health · Capsule
100
Mag Aspartate
Karuna · Capsule
100
Vitamin B-6 50 mg
Kirkman · Capsule
100
Neuro-Balance 620 Milligrams
Montiff · Capsule
100
Vitamin B-6 50 Milligrams
NutraBio · Capsule
100
View all Vitamin B6 products →
Vitamin B6 research Best Vitamin B6 All Vitamin B6 products More from Optimum Nutrition View on NIH DSLD →

This product page is for informational purposes only and does not constitute medical advice. Always consult your healthcare provider before taking any supplement.