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Magnesium Oxide 420 mg

product on market Tablet or Pill Nationwide Pharmaceutical Safety: 100/100
100/100

This product looks safe

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

What the Evidence Says

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

Magnesium is used to support nerve function, muscle relaxation, and bone health. There is strong clinical evidence supporting its role in managing magnesium deficiency and certain metabolic processes. This specific formulation provides a concentrated dose of the mineral to maintain systemic levels.

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

Label

Product Label

Label for Magnesium Oxide 420 mg
Open Full PDF View on NIH DSLD →
Details

Label Data

1 Tablet(s)
Serving Size
100
Servings
Mineral
Product Type
100%
Evidence Coverage
Ingredients

Supplement Facts — Evidence Check

252 mg (63% DV)
Within RDA (0.6× RDA) 316 studies (A:8, B:159)

Other Ingredients

Microcrystalline Cellulose Croscarmellose Sodium Silicon Dioxide Stearic Acid Magnesium Stearate Titanium Dioxide Hypromellose
Claims

Label Claims — Verification

Unverified All Other
Unverified Structure/Function
Info

Product Information

Directions for Use

Directions: Adults: Take one tablet daily with a meal as a dietary supplement or as directed by a doctor.

Warnings & Precautions

Warnings: Not recommended for use in amounts over the recommended daily intake of 420mg per day (1 tablet). May have a laxative effect.

Ask a doctor or pharmacist before use if you have a known allergy to this product. Stop use and contact a doctor if allergic reaction occurs.

Consult a doctor before using this product if you have kidney disease or are pregnant or nursing a baby.

Keep out of reach of children.

Do not use if imprinted safety seal under cap is broken or missing

Formulation Notes

Made in the USA

Additional Information

Other information: Store at controlled room temperature 15-30 degrees C (58-86 degrees F) Store in original container with lid tightly closed in a dry place Use by expiration date on package

NDC 69375-0008-10

Metadata

Product Details

UPC / SKU3 69375 00810 4
DSLD Entry Date2025-02-23
Product TypeMineral
FormTablet or Pill
DSLD ID327373
Data Updated2026-04-11
Research

Research Evidence

7
Research Sources
45
Avg Quality
6
Rct
1
Meta Analysis
C Effectiveness and safety of polyethylene-glycol-4000 versus sodium picosulphate plus magnesium oxide and citric acid for bowel cleansing before colonoscopy in children: A systematic review with meta-analysis
Meta Analysis Journal of pediatric gastroenterology and nutrition 2025 PubMed DOI
C A randomized controlled study of effects of dietary magnesium oxide supplementation on bone mineral content in healthy girls
Rct The Journal of clinical endocrinology and metabolism 2006 PubMed
C Senna Versus Magnesium Oxide for the Treatment of Chronic Constipation: A Randomized, Placebo-Controlled Trial
Rct The American journal of gastroenterology 2021 PubMed DOI
C The efficacy of magnesium oxide and sodium valproate in prevention of migraine headache: a randomized, controlled, double-blind, crossover study.
Rct Acta neurologica Belgica PubMed DOI
C A randomized, double-blind, placebo-controlled, multicenter study assessing the efficacy of magnesium oxide monohydrate in the treatment of nocturnal leg cramps.
Rct Nutrition journal PubMed DOI
C Comparative study between manitol and sodium picosulfate with magnesium oxide solutions in the preparation for colonoscopy.
Rct Revista do Colegio Brasileiro de Cirurgioes PubMed DOI
C Effect of magnesium oxide or citrate supplements on metabolic risk factors in kidney stone formers with idiopathic hyperoxaluria: a randomized clinical trial.
Rct Magnesium research PubMed DOI
View all evidence for Magnesium Oxide →
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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.