Comparison
Oyster Shell Calcium 250 +D and Eggshell Calcium With Vitamin D-3
Oyster Shell Calcium 250 +D (21st Century) lists 2 distinct ingredients and Eggshell Calcium With Vitamin D-3 (Swanson Ultra) 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 250 +D | Eggshell Calcium With Vitamin D-3 |
|---|---|---|
| Calcium | 500 mg (38%) | 500 mg (38%) |
| Vitamin D | 6.25 mcg (31%) | 7.5 mcg (38%) |
Amounts are per serving as DSLD gives them: Oyster Shell Calcium 250 +D, 2 tablets; Eggshell Calcium With Vitamin D-3, 1 capsule. Current labels entered July 2012 and July 2018. 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 250 +D21st Century: every row against all products listing it
- Eggshell Calcium With Vitamin D-3Swanson Ultra: every row against all products listing it