Oyster Shell Calcium 500 mg
This Geri-Care Oyster Shell Calcium 500 mg supplement is a bone health product, providing a combination of calcium and vitamin D. Each serving delivers 500mg of Calcium, which is at a clinically studied dose to support bone density. It also contains 200 IU of Vitamin D3, which is considered underdosed for many individuals seeking comprehensive bone health support. The product has an N+ Score of 55 and an 'F' grade, indicating it falls into the average performance tier. With a simple formulation of two active ingredients, its label is transparent. This product is best suited for individuals requiring a basic calcium supplement, potentially alongside other Vitamin D sources.
About This Product
Oyster Shell Calcium 500 mg by Geri-Care is a joint & bone supplement containing 2 active ingredients. It has earned an N+ Score of 55/100 (Grade F).
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
- +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 (2 ingredients)
| Ingredient | Amount | Dose Adequacy |
|---|---|---|
| Calcium | 500.000 mg | Optimal |
| Vitamin D3 | 200.000 IU | Under |
Clinical ranges based on NIH ODS Fact Sheets and peer-reviewed research. Status indicates whether the amount meets evidence-based thresholds.





