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Magnesium Oxide 400

product on market Tablet or Pill Wonder Labs Safety: 60/100
60/100

Review before taking

  • Magnesium: 482.6mg is 1.4× 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

Magnesium is supported by moderate evidence for supporting nerve function and muscle relaxation. Due to a safety score of 60, users should be aware of potential gastrointestinal side effects associated with magnesium oxide. Consult a professional regarding dosage and contraindications.

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

Alerts

Safety Alerts

Magnesium: 482.6mg is 1.4× the Tolerable Upper Intake Level (350mg)

✨ AI-generated · Qwen 3.6 · grounded in 2 sources · methodology

This product received a low safety score because it contains more magnesium than the recommended daily upper limit for adults.

Label

Product Label

Label for Magnesium Oxide 400
Open Full PDF View on NIH DSLD →
Details

Label Data

2 Tablet(s)
Serving Size
125
Servings
Mineral
Product Type
100%
Evidence Coverage
Ingredients

Supplement Facts — Evidence Check

482.6 mg (121% DV)
Exceeds UL by 1.4× (UL: 350 mg) 316 studies (A:8, B:159)

Other Ingredients

Vegetable Cellulose Vegetable Stearic Acid Vegetable Magnesium Stearate Silica
Claims

Label Claims — Verification

Unverified All Other
Unverified Structure/Function
Info

Product Information

Directions for Use

Directions: For adults, take two (2) tablets daily with food or as directed by a physician.

Warnings & Precautions

Tamper evident: Do not use this product if imprinted foil seal under cap is broken or missing.

Keep out of reach of children.

Caution: If you are pregnant, nursing, have kidney disease or are taking prescription medications, consult your physician before taking this product.

Formulation Notes

Conforms to USP <2091> for weight. Meets USP <2040> disintegration for maximum bioavailability.

Non-GMO

Pharmaceutical grade

Promotes bone mineralization and cardiovascular health

Compare to active ingredient of MAG-OX 400

Sugar free/Gluten free

Additional Information

Keep tightly closed. Store at room temperature: 59 degrees - 86 degrees F (15 degrees to 30 degrees C).

FDA Registered Facility GMP Good Manufacturing Practice USA Made

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Reorder #6802

Metadata

Product Details

UPC / SKU0 99528 68025 2
DSLD Entry Date2021-11-19
Product TypeMineral
FormTablet or Pill
BrandWonder Labs
DSLD ID261002
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.