Mason Natural Calcium Magnesium & Zinc, 100 Tablets supplement bottle
Mason Natural

Calcium Magnesium & Zinc, 100 Tablets

What We Researched
3 active ingredients analyzed · 11 inactive ingredients decoded · 2 brand certifications checked · 3 retailers compared · Last updated: Mar 2026
40
Product Score Poor
66
Brand Score Fair

Product Analysis

Transparency Excellent

Supplement Facts

IngredientAmount% DV
Calcium (as calcium carbonate) 334 mg 26%
Magnesium (as magnesium oxide) 134 mg 32%
Zinc (as zinc sulfate) 5 mg 45%
Bioavailability Poor

Absorption Rating

  • Calcium (as calcium carbonate) Fair
  • Magnesium (as magnesium oxide) Poor
  • Zinc (as zinc sulfate) Fair
Other Ingredients Fair

Fillers & Additives

  • Croscarmellose Sodium
  • Hypromellose
  • Stearic Acid
  • Acacia
  • Maltodextrin
  • Titanium Dioxide High
  • Sodium Lauryl Sulfate Low
  • Triacetin
  • Mineral Oil Medium
  • Egg shell
  • Magnesium Silicate
Efficacy Very Poor

Dosage Analysis

  • Calcium (as calcium carbonate) 334 mg Under-dosed
  • Magnesium (as magnesium oxide) 134 mg Under-dosed
  • Zinc (as zinc sulfate) 5 mg Under-dosed

Supplement Facts

Ingredient Amount % Daily Value
Calcium (as calcium carbonate) 334 mg 26%
Magnesium (as magnesium oxide) 134 mg 32%
Zinc (as zinc sulfate) 5 mg 45%

Other Ingredients

Inactive ingredients used in manufacturing. All rated for safety.

Croscarmellose Sodium Safe

Helps tablets break apart and dissolve quickly in the stomach.

Hypromellose Safe

Forms vegetarian capsule shells. Dissolves easily in the stomach.

Stearic Acid Safe

Helps ingredients flow smoothly through manufacturing equipment.

Acacia Generally_safe

It is used as a binder or thickener.

Maltodextrin Generally_safe

Helps carry and stabilize active ingredients. Provides bulk.

Titanium Dioxide Caution

Used as a whitening agent in tablet coatings and capsules.

Sodium Lauryl Sulfate Caution

It is used to help mix oil and water-based ingredients.

Triacetin Generally_safe

It is used as a solvent or humectant.

Mineral Oil Caution

It is used as a lubricant or emollient.

Egg shell Unknown
Magnesium Silicate Generally_safe

It is used to improve powder flow and prevent clumping.

Price Comparison

Price History

Tracked across major retailers. Updated periodically.

$7$6$5$4$3 Mar 12 $5.04$4.77
iHerb
Vitacost

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 Calcium Magnesium & Zinc, 100 Tablets a good supplement?

Mason Natural Calcium Magnesium & Zinc, 100 Tablets received a product quality score of 40/100 in GoodSupp's independent analysis, indicating several areas of concern that consumers should review. The product contains 3 active ingredients Of the 11 inactive ingredients, 3 are rated safe and 3 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 Calcium Magnesium & Zinc, 100 Tablets?

Mason Natural Calcium Magnesium & Zinc, 100 Tablets contains 3 active ingredients: Calcium (as calcium carbonate) (334 mg), Magnesium (as magnesium oxide) (134 mg), Zinc (as zinc sulfate) (5 mg). Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

Is Mason Natural Calcium Magnesium & Zinc, 100 Tablets safe to take?

Mason Natural Calcium Magnesium & Zinc, 100 Tablets has been analyzed for ingredient safety across all its components. Of 11 inactive ingredients, 3 are rated safe. 3 ingredients are flagged for review: Titanium Dioxide, Sodium Lauryl Sulfate, Mineral Oil. '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.