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Magnesium Oxide Pure Powder

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This product looks safe

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

What the Evidence Says

AI-generated · Qwen 3.6 · grounded in 1 source · methodology

Magnesium is essential for supporting muscle function, nerve transmission, and biochemical reactions in the body. There is strong evidence supporting its role in maintaining healthy electrolyte balance and bone density. This specific mineral profile is generally well-tolerated and recognized as safe for supplementation.

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

Label

Product Label

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

Label Data

0.25 tsp
Serving Size
454
Servings
Mineral
Product Type
100%
Evidence Coverage
Ingredients

Supplement Facts — Evidence Check

290 mg (69% DV)
Within RDA (0.7× RDA) 316 studies (A:8, B:159)

Other Ingredients

None
Claims

Label Claims — Verification

Unverified All Other
Unverified Structure/Function
Info

Product Information

Directions for Use

Suggested Usage: Mix 1/4 level teaspoon of powder into at least 6 oz. of cold water or clear liquid. Take once daily with a meal. Pure Magnesium Oxide Powder can increase the temperature of liquids upon contact; therefore, the recommended serving must be mixed into at least 6 oz. of cold liquid to neutralize this reaction prior to ingestion.

Warnings & Precautions

Caution: This product must be dissolved into at least 6 oz. of cold water or clear liquid before consuming. Do not breathe powder and avoid contact with skin, eyes, and clothing. For adults only.

Consult physician if pregnant/nursing, taking medication, or have a medical condition.

Keep out of reach of children.

Not manufactured with wheat, gluten, soy, milk, egg, fish, shellfish or tree nut ingredients. Produced in a GMP facility that processes other ingredients containing these allergens.

Formulation Notes

Non-GMO

Vegetarian/Vegan

Not manufactured with wheat, gluten, soy, milk, egg, fish, shellfish or tree nut ingredients.

Additional Information

Magnesium is a mineral that is critical for energy production and metabolism, muscle contraction, nerve impulse transmission, and bone mineralization.* It is a required cofactor for an estimated 300 enzymes.* Among the reactions catalyzed by these enzymes are fatty acid synthesis, protein synthesis, and glucose metabolism.* Magnesium status is also important for regulation of calcium balance through its effects on the parathyroid gland.*

Natural color variation may occur in this product.

CODE 1310 V5

Nervous system support*

~ Supports energy production* ~ Critical for enzyme function*

NON GMO Project Verified nongmoproject.org

Minerals

Family owned since 1968.

Store in a cool, dry place after opening.

Please recycle.

GMP Quality Assured

This product is sold by weight not volume.

Metadata

Product Details

UPC / SKU7 33739 01310 1
DSLD Entry Date2017-04-25
Product TypeMineral
FormPowder
BrandNOW
DSLD ID72119
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.