Magnesium Oxide 400 mg by DC — Ingredients, Evidence & Safety

Product Label

📄 Open Full PDF View on NIH DSLD →

📸

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

120 Servings

Mineral Product Type

100% Evidence Coverage

Supplement Facts — Evidence Check

Magnesium

241.3 mg (57% DV)

📊 Market median: 4002.0mg (1 products) 📚 20 studies (Tier A: 0, B: 2)

This product: 241.3mg

Other Ingredients

Cellulose Stearic Acid Magnesium Stearate Silica

Label Claims — Verification

❓ All Other

❓ Structure/Function

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

Target Groups

Adult (18 - 50 Years) Gluten Free

Product Information

📋 Directions for Use

Directions: As an adult dietary supplement, take 1 or 2 tablets daily.

⚠️ 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 medication, consult your physician before taking this product.

🧪 Formulation Notes

Mfg. in an FDA Registered Facility using Good Manufacturing Practices (GMPs)

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

Now coated, easier to swallow

Gluten free

Promotes bone mineralization and cardiovascular health

Made in USA

Additional Information

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

Quali Pure

Product Details

DSLD Entry Date 2022-04-11

Product Type Mineral

Form Tablet or Pill

Brand DC

DSLD ID 265890

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

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 →