Comparison

Natural Oyster Shell Calcium 500 mg + Vitamin D and Ryukyu Coral Calcium

Natural Oyster Shell Calcium 500 mg + Vitamin D (FDC) lists 1 distinct ingredients and Ryukyu Coral Calcium (Natural Guardian) 1 (rows of one ingredient counted once); 1 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.

Amount per serving (and % of the Daily Value)
IngredientNatural Oyster Shell Calcium 500 mg + Vitamin DRyukyu Coral Calcium
Vitamin D5 mcg (25%)5 mcg (25%)

Amounts are per serving as DSLD gives them: Natural Oyster Shell Calcium 500 mg + Vitamin D, 0 not present; Ryukyu Coral Calcium, 2 capsules. Current labels entered November 2019 and November 2011. Percentages of the Daily Value from 21 CFR 101.9. Source: NIH ODS Dietary Supplement Label Database.

Each product on its own