MgO-400

product on market Tablet or Pill 21st Century Safety: 80/100
80/100

This product is generally safe

  • elemental Magnesium: 483mg is 1.4× the Tolerable Upper Intake Level (350mg)
  • 50% of ingredients have research evidence
C Label Compliance Grade

What the Evidence Says

AI-generated · Qwen 3.6 · methodology

Calcium and magnesium are essential minerals that support bone density and neuromuscular function. While research provides strong evidence for their general physiological roles, the evidence coverage for this specific formulation is limited. The ingredients are generally recognized as safe for most users.

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

Alerts

Safety Alerts

elemental Magnesium: 483mg is 1.4× the Tolerable Upper Intake Level (350mg)

Label

Product Label

Label for MgO-400
Open Full PDF View on NIH DSLD →
Details

Label Data

2 Tablet(s)
Serving Size
Mineral
Product Type
50%
Evidence Coverage
Ingredients

Supplement Facts — Evidence Check

Calcium
130 mg (10% DV)
483 mg (115% DV)
Exceeds UL by 1.4× (UL: 350 mg) 316 studies (A:8, B:159)

Other Ingredients

Cellulose Croscarmellose Sodium Stearic Acid Kelp Contains Less Than 2% of
Claims

Label Claims — Verification

Unverified Nutrient
Unverified All Other
Unverified Structure/Function
Info

Product Information

Directions for Use

Directions: As a mineral supplement, adults take two (2) tablets daily with any meal or as directed by a healthcare provider. Do not exceed recommended dosage.

Warnings & Precautions

Do not exceed recommended dosage.

Warning: Consult a healthcare provider prior to use if pregnant, nursing, on medications, have a medical condition or are planning a medical procedure.

Stop use and contact a physician if adverse reactions occur.

Keep out of reach of children.

Do not use if product appears to be tampered with or seal is broken.

Formulation Notes

No added Sugar, Yeast, Preservatives, Artificial Flavors or Colors.

Contains 400 mg magnesium oxide per tablet.

Pharmaceutical grade

Gluten free

Magnesium is an essential mineral and supports bone and muscle health.

Additional Information

Individual results may vary.

Store at room temperature.

Compare vs. Mag-Ox 400

Guaranteed quality Laboratory tested

Metadata

Product Details

UPC / SKU7 40985 27072 1
DSLD Entry Date2022-01-22
Product TypeMineral
FormTablet or Pill
DSLD ID258475
Data Updated2026-04-11
Research

Research Evidence

849
Research Sources
56
Avg Quality
450
Meta Analysis
152
Rct
137
Systematic Review
73
Clinical Trial
11
Regulatory Source
7
Other
7
Guideline
3
Openfda Safety
2
Cochrane Review
2
Observational
A Phosphate binders for preventing and treating chronic kidney disease-mineral and bone disorder (CKD-MBD)
Meta Analysis The Cochrane database of systematic reviews 2018 PubMed DOI
A Calcium supplementation (other than for preventing or treating hypertension) for improving pregnancy and infant outcomes
Meta Analysis The Cochrane database of systematic reviews 2024 PubMed DOI
A Calcium supplementation (other than for preventing or treating hypertension) for improving pregnancy and infant outcomes
Meta Analysis The Cochrane database of systematic reviews 2015 PubMed DOI
A Vitamin and mineral supplementation for maintaining cognitive function in cognitively healthy people in mid and late life
Meta Analysis The Cochrane database of systematic reviews 2018 PubMed DOI
A Calcium supplementation during pregnancy for preventing hypertensive disorders and related problems
Meta Analysis The Cochrane database of systematic reviews 2025 PubMed DOI
A Dietary calcium supplementation for preventing colorectal cancer and adenomatous polyps
Systematic Review The Cochrane database of systematic reviews 2008 PubMed DOI
A Calcium and vitamin D for increasing bone mineral density in premenopausal women
Systematic Review The Cochrane database of systematic reviews 2023 PubMed DOI
A Dietary sodium, sodium-to-potassium ratio, and risk of stroke: A systematic review and nonlinear dose-response meta-analysis
Meta Analysis Clinical nutrition (Edinburgh, Scotland) 2019 PubMed DOI
A The association between circulating magnesium and clinically relevant outcomes in patients with chronic kidney disease: A systematic review and meta-analysis
Meta Analysis Clinical nutrition (Edinburgh, Scotland) 2021 PubMed DOI
A Calcium channel blockers versus other classes of drugs for hypertension
Systematic Review The Cochrane database of systematic reviews 2021 PubMed DOI
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This product page is for informational purposes only and does not constitute medical advice. Always consult your healthcare provider before taking any supplement.