Comparison

Calcium & Magnesium and Calcium & Magnesium Citrate

Calcium & Magnesium (Natural Factors) lists 6 distinct ingredients and Calcium & Magnesium Citrate (Natural Factors) 8 (rows of one ingredient counted once); 6 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 0.66.

Amount per serving (and % of the Daily Value)
IngredientCalcium & MagnesiumCalcium & Magnesium Citrate
Carbohydrate1 g1 g
Calcium350 mg (27%)250 mg (19%)
Magnesium175 mg (42%)250 mg (60%)
Zinc5 mg (45%)5 mg (45%)
Potassium10 mg (under 1%)20 mg (under 1%)
Silicon5 mg0.1 mg
Fiber1 g
Horsetail5 mg

Amounts are per serving as DSLD gives them: Calcium & Magnesium, 1 tablet; Calcium & Magnesium Citrate, 1 tablet. Current labels entered April 2012 and April 2012. Percentages of the Daily Value from 21 CFR 101.9. Source: NIH ODS Dietary Supplement Label Database.

Each product on its own