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Magnesium Oxide 540 mg

product on market Capsule Dr. Clark Research Association Dr. Clark Zentrum Safety: 60/100
60/100

Review before taking

  • Magnesium: 600mg is 1.7× 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 used to support nerve function and muscle relaxation, though evidence for magnesium oxide specifically is often limited due to low bioavailability. With a safety score of 60, potential concerns include gastrointestinal distress or interactions with certain medications. Consult a professional regarding appropriate dosing.

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

Alerts

Safety Alerts

Magnesium: 600mg is 1.7× 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 supplements. Specifically, the dose is 1.7 times higher than the 350mg limit.

Label

Product Label

Label for Magnesium Oxide 540 mg
Open Full PDF View on NIH DSLD →
Details

Label Data

2 Capsule(s)
Serving Size
50
Servings
Mineral
Product Type
100%
Evidence Coverage
Ingredients

Supplement Facts — Evidence Check

600 mg (150% DV)
Exceeds UL by 1.7× (UL: 350 mg) 316 studies (A:8, B:159)

Other Ingredients

Magnesium Oxide Gelatin
Claims

Label Claims — Verification

Unverified Nutrient
Unverified All Other
Info

Product Information

Directions for Use

Adults and children 12 or more years of age: 2 capsules daily with a meal or as directed.

Best before: see expiration date.

Warnings & Precautions

Dietary supplements/food supplements should not be used as a substitute for a varied diet. Do not exceed the stated recommended daily dose.

Formulation Notes

Made in the USA.

Additional Information

Store out of reach of young children. Store in a dry, cool place.

Nominal weight: 64 g

Metadata

Product Details

UPC / SKU7 640116 923140
DSLD Entry Date2021-09-24
Product TypeMineral
FormCapsule
BrandDr. Clark Research Association Dr. Clark Zentrum
DSLD ID255122
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.