Calcium 500 mg Natural Oyster Shell
Sundown Naturals Calcium 500 mg Natural Oyster Shell is a straightforward bone health supplement, providing a single active ingredient. Each caplet delivers 500mg of Calcium from natural oyster shell, which is a clinically studied dosage for supporting bone health. The product has an N+ Score of 70, earning a 'C' grade, reflecting its focused approach and appropriate dosage for its primary ingredient. With only one ingredient, it offers complete label transparency. This supplement is ideal for individuals looking to specifically increase their daily calcium intake to support bone density, without additional vitamins or minerals.
About This Product
Calcium 500 mg Natural Oyster Shell by Sundown Naturals is a joint & bone supplement containing 1 active ingredients. It has earned an N+ Score of 70/100 (Grade C).
This product features a fully transparent label with individual ingredient amounts disclosed, and key ingredients are present at clinically effective doses based on peer-reviewed research.
Notable clinical-dose ingredients include Calcium.
N+ Score Breakdown
Are key ingredients present at clinically effective doses based on research?
Does the product include all expected ingredients for its supplement category?
Are individual ingredient amounts clearly disclosed without proprietary blends?
Does the formula include a breadth of beneficial compounds from multiple pathways?
Strengths
- +Key ingredients at clinically effective doses
- +Fully transparent label with individual ingredient amounts disclosed
- +1 ingredient(s) at clinical dose levels
Weaknesses
- −Missing several expected ingredients for its category
Ingredient Analysis (1 ingredients)
| Ingredient | Amount | Dose Adequacy |
|---|---|---|
| Calcium | 500.000 mg | Optimal |
Clinical ranges based on NIH ODS Fact Sheets and peer-reviewed research. Status indicates whether the amount meets evidence-based thresholds.





