Oyster Shell Calcium + Vitamin D 500mg Tablets
Product Analysis
Transparency Excellent
Supplement Facts
| Ingredient | Amount | % DV |
|---|---|---|
| Vitamin D (as Cholecalciferol) | 5.0 mcg (200 IU) | 25% |
| Calcium (as Oyster Shell) | 500.0 mg | 38% |
Bioavailability Excellent
Absorption Rating
- Vitamin D (as Cholecalciferol) Good
- Calcium (as Oyster Shell) Good
Other Ingredients Very Poor
Fillers & Additives
- Acacia
- Maltodextrin
- Croscarmellose Sodium
- Microcrystalline Cellulose
- Hypromellose
- Polydextrose
- Titanium Dioxide High
- Soy Polysaccharide
- Sodium Lauryl Sulfate Low
- Talc High
- Starch
- Triglycerides
- Sucrose
- Fd&c Blue #1 Lake High
- Fd&c Yellow #5 Lake High
- Sodium Ascorbate
- Silicon Dioxide And Tocopherols
Efficacy Fair
Dosage Analysis
- Vitamin D (as Cholecalciferol) 5.0 mcg (200 IU) Under-dosed
- Calcium (as Oyster Shell) 500.0 mg Effective
Supplement Facts
| Ingredient | Amount | % Daily Value |
|---|---|---|
| Vitamin D (as Cholecalciferol) | 5.0 mcg (200 IU) | 25% |
| Calcium (as Oyster Shell) | 500.0 mg | 38% |
Other Ingredients
Acacia Generally_safe
Maltodextrin Generally_safe
Hypromellose Safe
Polydextrose Generally_safe
Titanium Dioxide Caution
Soy Polysaccharide Unknown
Sodium Lauryl Sulfate Caution
Talc Avoid
Starch Generally_safe
Triglycerides Generally_safe
Sucrose Generally_safe
Fd&c Blue #1 Lake Unknown
Fd&c Yellow #5 Lake Unknown
Sodium Ascorbate Safe
Silicon Dioxide And Tocopherols Unknown
Price Comparison
Price History
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Transparency
1 claim
Is Major Oyster Shell Calcium + Vitamin D 500mg Tablets a good supplement?
Major Oyster Shell Calcium + Vitamin D 500mg Tablets received a product quality score of 62/100 in GoodSupp's independent analysis, suggesting some areas that could be improved. The product contains 2 active ingredients with 300 servings per container. Of the 17 inactive ingredients, 4 are rated safe and 2 are flagged for review.
What are the ingredients in Major Oyster Shell Calcium + Vitamin D 500mg Tablets?
Major Oyster Shell Calcium + Vitamin D 500mg Tablets contains 2 active ingredients: Vitamin D (as Cholecalciferol) (5.0 mcg (200 IU)), Calcium (as Oyster Shell) (500.0 mg). Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.
Is Major Oyster Shell Calcium + Vitamin D 500mg Tablets safe to take?
Major Oyster Shell Calcium + Vitamin D 500mg Tablets has been analyzed for ingredient safety across all its components. Of 17 inactive ingredients, 4 are rated safe. 2 ingredients are flagged for review: Titanium Dioxide, Sodium Lauryl Sulfate. '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.
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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