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Magnesium 500 mg

product on market Tablet or Pill Rexall Safety: 60/100
60/100

Review before taking

  • Magnesium: 500mg 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 supports muscle and nerve function, with strong evidence for its role in managing certain deficiencies. However, the low safety score suggests potential concerns regarding gastrointestinal tolerance or drug interactions. Users should be aware of these risks when supplementing at this dosage.

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

Alerts

Safety Alerts

Magnesium: 500mg 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 500mg of magnesium, which exceeds the recommended daily upper limit of 350mg.

Label

Product Label

Label for Magnesium 500 mg
Open Full PDF View on NIH DSLD →
Details

Label Data

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

Supplement Facts — Evidence Check

500 mg (125% DV)
Exceeds UL by 1.4× (UL: 350 mg) 316 studies (A:8, B:159)

Other Ingredients

Cellulose Dicalcium Phosphate Citric Acid Croscarmellose Contains <2% of:
Claims

Label Claims — Verification

Unverified All Other
Unverified Structure/Function
Info

Product Information

Directions for Use

DIRECTIONS: FOR ADULTS, TAKE ONE (1) TABLET DAILY, PREFERABLY WITH A MEAL.

Warnings & Precautions

KEEP OUT OF REACH OF CHILDREN.

TAMPER RESISTANT: DO NOT USE IF SEAL UNDER CAP IS BROKEN OR MISSING.

WARNING: If you are pregnant, nursing, taking any medications or have any medical condition, consult your doctor before use.

Discontinue use and consult your doctor if any adverse reactions occur.

Formulation Notes

No Gluten, No Yeast, No Wheat, No Milk or Milk Derivatives, No Lactose, No Sugar, No Preservatives, No Soy, No Artificial Flavor, No Sodium.

Additional Information

IMPORTANT FACTS YOU SHOULD KNOW Magnesium plays an essential role in maintaining mineralization.* Magnesium is also involved in muscle contractions and nerve impulses.*

STORE AT ROOM TEMPERATURE AND AVOID EXCESSIVE HEAT.

ACTUAL SIZE

A0647

Prod. No. 5538 01B B5536 BAB

Since 1903

Supports Bone and Muscle Health*

QUALITY GUARANTEED

As a reminder, discuss the supplements and medications you take with your health care providers.

Quality Guaranteed Lab Tested Laboratory tested to meet strict quality control standards for potency, purity and disintegration. 100% Quality Guaranteed.

Metadata

Product Details

UPC / SKU3 01220 05538 3
DSLD Entry Date2015-04-24
Product TypeMineral
FormTablet or Pill
BrandRexall
DSLD ID44556
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.