Comparison
Oyster Shell Calcium 500 +D and Calcium Citrate with Vitamin D3
Oyster Shell Calcium 500 +D (21st Century) lists 2 distinct ingredients and Calcium Citrate with Vitamin D3 (Trader Joe's) 2 (rows of one ingredient counted once); 2 are on both labels. On the site's similarity measure, which compares ingredient lists (1 for the same list, rarer ingredients counting for more; amounts are not part of it), the two formulas score 1.00: the same ingredients, at the amounts in the table below.
| Ingredient | Oyster Shell Calcium 500 +D | Calcium Citrate with Vitamin D3 |
|---|---|---|
| Calcium | 1,000 mg (77%) | 1,000 mg (77%) |
| Vitamin D | 10 mcg (50%) | 10 mcg (50%) |
Amounts are per serving as DSLD gives them: Oyster Shell Calcium 500 +D, 2 tablets; Calcium Citrate with Vitamin D3, 3 tablets. Current labels entered July 2012 and October 2013. Percentages of the Daily Value from 21 CFR 101.9. Source: NIH ODS Dietary Supplement Label Database.
Each product on its own
- Oyster Shell Calcium 500 +D21st Century: every row against all products listing it
- Calcium Citrate with Vitamin D3Trader Joe's: every row against all products listing it