Best Naturals Pure Magnesium Oxide Powder 1 Pound supplement bottle
Best Naturals

Pure Magnesium Oxide Powder 1 Pound Review

What We Researched
1 active ingredient analyzed · 1 brand certification checked · Page generated: Sep 2026
68
Product Score Fair
74
Brand Score Fair

Two independent scores — the product and the brand behind it, never blended into one number. See our methodology.

Product Analysis

Transparency Excellent

Supplement Facts

IngredientAmount% DV
Magnesium (as Magnesium Oxide) 500.0 mg 119%
Bioavailability Very Poor

Absorption Rating

  • Magnesium (as Magnesium Oxide) Poor
Other Ingredients Excellent

Fillers & Additives

No inactive ingredient data available.

Efficacy Very Good

Dosage Analysis

  • Magnesium (as Magnesium Oxide) 500.0 mg High

Supplement Facts

Ingredient Amount % Daily Value
Magnesium (as Magnesium Oxide) 500.0 mg 119%
Brand Trust Report
Best Naturals

Founded 2012 · Piscataway, New Jersey, USA · 129 products · shopbestnaturals.com

Certifications

1 certification
Consumerlab Source available Primary evidence

Transparency

4 claims
Third Party Testing Claim — Claimed Evidence available Evidence
In House Testing — Verified Evidence available Evidence
Contains Proprietary Blend — True Brand claim; evidence unavailable

Violation History

2 incidents
Prop 65 Lead and lead compounds2021-12-29 Source available Primary source
Lawsuit Falsely advertising krill oil supplements that allegedly contain no krill.2021 Source available Primary source
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Frequently Asked Questions
Is Best Naturals Pure Magnesium Oxide Powder 1 Pound a good supplement?

Best Naturals Pure Magnesium Oxide Powder 1 Pound received a product quality score of 68/100 in GoodSupp's independent analysis, suggesting some areas that could be improved. The product contains 1 active ingredients with 543 servings per container. The manufacturer, Best Naturals, holds a brand trust score of 74/100.

What are the ingredients in Best Naturals Pure Magnesium Oxide Powder 1 Pound?

Best Naturals Pure Magnesium Oxide Powder 1 Pound contains 1 active ingredients: Magnesium (as Magnesium Oxide) (500.0 mg). Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

Is Best Naturals Pure Magnesium Oxide Powder 1 Pound safe to take?

GoodSupp reviewed the inactive-ingredient data available for Best Naturals Pure Magnesium Oxide Powder 1 Pound. This label analysis cannot determine whether the product is safe for a particular person, and source labels may change. Always consult your healthcare provider before starting any new supplement, especially if you take medications or have underlying health conditions.

Is Best Naturals a trustworthy supplement brand?

Best Naturals receives a brand trust score of 74/100 based on GoodSupp's independent analysis of certifications, regulatory history, and transparency practices. Founded in 2012 and headquartered in Piscataway, New Jersey, USA, the company offers 129 products in their lineup. Note: Best Naturals has 2 historical regulatory incidents on record, which are factored into the trust score.

What is magnesium good for?

Magnesium Good For is a topic many supplement consumers ask about. In the context of dietary supplements, understanding magnesium good for helps you make more informed choices about what you put in your body. The quality and form of ingredients matters significantly — two products listing the same ingredient can differ dramatically in bioavailability and effectiveness. GoodSupp analyzes over 150,000 supplement products to help consumers understand exactly what's in their supplements and whether the formulation meets quality standards.

How much magnesium per day?

The optimal dosage depends on your individual health needs, age, sex, and current nutrient levels. Recommended daily amounts are established by health authorities but may vary from therapeutic doses used in clinical research. It's important to check the Supplement Facts label for the exact amount per serving and compare it against the % Daily Value. Some supplements provide mega-doses well above the Daily Value, which may not be necessary and in some cases could be harmful — particularly for fat-soluble vitamins (A, D, E, K) that accumulate in the body. GoodSupp's efficacy analysis evaluates whether a product's dosages align with clinically studied amounts. Always consult your healthcare provider for personalized dosage recommendations.

What is zinc good for?

Zinc Good For is a topic many supplement consumers ask about. In the context of dietary supplements, understanding zinc good for helps you make more informed choices about what you put in your body. The quality and form of ingredients matters significantly — two products listing the same ingredient can differ dramatically in bioavailability and effectiveness. GoodSupp analyzes over 150,000 supplement products to help consumers understand exactly what's in their supplements and whether the formulation meets quality standards.

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Disclaimer: GoodSupp provides independent supplement quality analysis for informational purposes only. Scores are generated algorithmically based on ingredient profiles, brand certifications, and public records — read our methodology. This is not medical advice. Always consult a healthcare professional before starting any supplement regimen. Product data is sourced from manufacturer labels and public databases. GoodSupp is not affiliated with any supplement brand.