Oyster Shell Calcium Plus D3, 250 Tablets
Product Analysis
Transparency Excellent
Supplement Facts
| Ingredient | Amount | % DV |
|---|---|---|
| Vitamin D3 (as cholecalciferol) (400 IU) | 10 mcg | 50% |
| Calcium (from oyster shell and calcium carbonate) | 500 mg | 38% |
Bioavailability Very Good
Absorption Rating
- Vitamin D3 (as cholecalciferol) (400 IU) Good
- Calcium (from oyster shell and calcium carbonate) Fair
Other Ingredients Very Good
Fillers & Additives
- Microcrystalline Cellulose
- Acacia
- Maltodextrin
- Croscarmellose Sodium
- Hypromellose
- Sodium Lauryl Sulfate Low
- Starch
- Mineral Oil Medium
- Polyethylene Glycol Low
- Sucrose
- Stearic Acid
- Sodium Ascorbate
- Triglycerides
- Silicon Dioxide
- Tocopherols
- Magnesium Silicate
Efficacy Fair
Dosage Analysis
- Vitamin D3 (as cholecalciferol) (400 IU) 10 mcg Under-dosed
- Calcium (from oyster shell and calcium carbonate) 500 mg Effective
Supplement Facts
| Ingredient | Amount | % Daily Value |
|---|---|---|
| Vitamin D3 (as cholecalciferol) (400 IU) | 10 mcg | 50% |
| Calcium (from oyster shell and calcium carbonate) | 500 mg | 38% |
Other Ingredients
Acacia Generally_safe
Maltodextrin Generally_safe
Hypromellose Safe
Sodium Lauryl Sulfate Caution
Starch Generally_safe
Mineral Oil Caution
Polyethylene Glycol Caution
Sucrose Generally_safe
Stearic Acid Safe
Sodium Ascorbate Safe
Triglycerides Generally_safe
Silicon Dioxide Safe
Tocopherols Safe
Magnesium Silicate Generally_safe
Price Comparison
Price History
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Transparency
2 claims
Is Mason Natural Oyster Shell Calcium Plus D3, 250 Tablets a good supplement?
Mason Natural Oyster Shell Calcium Plus D3, 250 Tablets received a product quality score of 75/100 in GoodSupp's independent analysis, suggesting some areas that could be improved. The product contains 2 active ingredients Of the 16 inactive ingredients, 7 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 Oyster Shell Calcium Plus D3, 250 Tablets?
Mason Natural Oyster Shell Calcium Plus D3, 250 Tablets contains 2 active ingredients: Vitamin D3 (as cholecalciferol) (400 IU) (10 mcg), Calcium (from oyster shell and calcium carbonate) (500 mg). Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.
Is Mason Natural Oyster Shell Calcium Plus D3, 250 Tablets safe to take?
Mason Natural Oyster Shell Calcium Plus D3, 250 Tablets has been analyzed for ingredient safety across all its components. Of 16 inactive ingredients, 7 are rated safe. 3 ingredients are flagged for review: Sodium Lauryl Sulfate, Mineral Oil, Polyethylene Glycol. '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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