Mason Natural Magnesium, 200 mg, 100 Tablets supplement bottle
Mason Natural

Magnesium, 200 mg, 100 Tablets

What We Researched
1 active ingredient analyzed · 8 inactive ingredients decoded · 2 brand certifications checked · 3 retailers compared · Last updated: Mar 2026
62
Product Score Fair
66
Brand Score Fair

Product Analysis

Transparency Excellent

Supplement Facts

IngredientAmount% DV
Magnesium (as magnesium gluconate and magnesium oxide) 200 mg 48%
Bioavailability Very Poor

Absorption Rating

  • Magnesium (as magnesium gluconate and magnesium oxide) Poor
Other Ingredients Good

Fillers & Additives

  • Microcrystalline Cellulose
  • Maltodextrin
  • Stearic Acid
  • Vegetable Magnesium Stearate
  • Silicon dioxide hydroxypropyl cellulose
  • Hydroxypropyl methylcellulose croscarmellose sodium
  • Titanium Dioxide High
  • Glyceryl Triacetate
Efficacy Excellent

Dosage Analysis

  • Magnesium (as magnesium gluconate and magnesium oxide) 200 mg Effective

Supplement Facts

Ingredient Amount % Daily Value
Magnesium (as magnesium gluconate and magnesium oxide) 200 mg 48%

Other Ingredients

Inactive ingredients used in manufacturing. All rated for safety.

Microcrystalline Cellulose Safe

Adds bulk to small-dose supplements to make tablets/capsules a manageable size.

Maltodextrin Generally_safe

Helps carry and stabilize active ingredients. Provides bulk.

Stearic Acid Safe

Helps ingredients flow smoothly through manufacturing equipment.

Vegetable Magnesium Stearate Safe

Prevents ingredients from sticking to equipment. Derived from vegetable sources.

Silicon dioxide hydroxypropyl cellulose Unknown
Hydroxypropyl methylcellulose croscarmellose sodium Unknown
Titanium Dioxide Caution

Used as a whitening agent in tablet coatings and capsules.

Glyceryl Triacetate Generally_safe

It is used as a solvent or to improve the texture of supplements.

Price Comparison

Price History

Tracked across major retailers. Updated periodically.

$7$6$5$4$3 Mar 12 $4.77
iHerb

Prices shown at time of last check. Click a retailer to see current price. GoodSupp is not affiliated with any retailer.

Brand Trust Report
Mason Natural

Founded 1967 · Miami Lakes, Florida, USA · 161 products · masonvitamins.com

Certifications

2 certifications
Consumerlab Verified Source
Fda Gmp Inspections Verified Source

Transparency

2 claims
Third Party Testing Claim — Claimed Source

Violation History

4 incidents
Recall Herbal Colon Cleanser Capsules2025-09-02Source
Recall Healthy Sense Daily Multiple with Iron and People's Choice Women's Daily Vitamins with Iron2022-11-17Source
Prop 65 Lead2017-03-10Source
Prop 65 Lead2016-03-28Source
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Frequently Asked Questions
Is Mason Natural Magnesium, 200 mg a good supplement?

Mason Natural Magnesium, 200 mg, 100 Tablets received a product quality score of 62/100 in GoodSupp's independent analysis, suggesting some areas that could be improved. The product contains 1 active ingredients Of the 8 inactive ingredients, 3 are rated safe and 1 are flagged for review. The manufacturer, Mason Natural, holds a brand trust score of 66/100 with 2 verified certifications including Consumerlab, Fda Gmp Inspections.

What are the ingredients in Mason Natural Magnesium, 200 mg?

Mason Natural Magnesium, 200 mg contains 1 active ingredients: Magnesium (as magnesium gluconate and magnesium oxide) (200 mg). Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

Is Mason Natural Magnesium, 200 mg safe to take?

Mason Natural Magnesium, 200 mg, 100 Tablets has been analyzed for ingredient safety across all its components. Of 8 inactive ingredients, 3 are rated safe. 1 ingredient is flagged for review: Titanium Dioxide. 'Caution' doesn't mean dangerous — it indicates the ingredient has some considerations worth being aware of, such as potential sensitivities or ongoing research. Always consult your healthcare provider before starting any new supplement, especially if you take medications or have underlying health conditions.

Is Mason Natural a trustworthy supplement brand?

Mason Natural receives a brand trust score of 66/100 based on GoodSupp's independent analysis of certifications, regulatory history, and transparency practices. Founded in 1967 and headquartered in Miami Lakes, Florida, USA, the company offers 161 products in their lineup. They hold 2 verified certifications including Consumerlab, Fda Gmp Inspections. Third-party certifications are independently verified and indicate the brand meets specific quality, purity, and manufacturing standards. Note: Mason Natural has 4 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 250,000 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 250,000 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. 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.