Comparison

Calcium 1000 +D and Oyster Shell Calcium 500 +D Extra Vitamin D Value Size

Calcium 1000 +D (21st Century) lists 2 distinct ingredients and Oyster Shell Calcium 500 +D Extra Vitamin D Value Size (21st Century) 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.

Each product on its own

• Calcium 1000 +D21st Century: every row against all products listing it
• Oyster Shell Calcium 500 +D Extra Vitamin D Value Size21st Century: every row against all products listing it