🟢 100/100

This product looks safe

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

Product Label

📸

Have a supplement label? Find it here.

Upload a photo of any supplement label to search our database of 92,312 products.

Label Data

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

Supplement Facts — Evidence Check

240 mg (57% DV)
✅ Within RDA (0.6× RDA of 420 mg) 📚 310 studies (Tier A: 8, B: 159)
RDA 420mg This product: 240mg UL 350mg

Other Ingredients

Microcrystalline Cellulose Stearic Acid pregelatinized Corn Starch Croscarmellose Sodium Sodium Starch Glycolate Magnesium Stearate

Label Claims — Verification

All Other
All Other (100% of products) Structure/Function (78% of products) Nutrient (46% of products)

Target Groups

Adult (18 - 50 Years)

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

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

Drug Interaction Precaution: This product may interact with certain prescription drugs. If you are presently taking a prescription drug, do not take this product without consulting your doctor or other health professional.

Warning: Not recommended for use in amounts over the recommended daily intake at 400 mg per day (1 tablet).

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

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

May have a laxative effect.

Keep out of reach of children

Additional Information

To preserve quality and freshness, keep bottle tightly closed. Store at room temperature in a dry place.

Rev. 12/16 R-95 Re-order No. 370170

Product Details

UPC / SKU 0 05363 52141 4
DSLD Entry Date 2019-04-25
Product Type Mineral
Form Tablet or Pill
Brand Rugby
DSLD ID 200784
Data Updated 2026-04-11

Research Evidence

7 Research Sources
45 Avg Quality Score
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
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
C Senna Versus Magnesium Oxide for the Treatment of Chronic Constipation: A Randomized, Placebo-Controlled Trial
Rct The American journal of gastroenterology 2021
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
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
C Comparative study between manitol and sodium picosulfate with magnesium oxide solutions in the preparation for colonoscopy.
Rct Revista do Colegio Brasileiro de Cirurgioes
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
View all evidence for Magnesium Oxide →

Compare Similar Products

View all Magnesium Oxide products →