Comparison

Ferrous Sulfate 325 mg and Iron Sulfate

Ferrous Sulfate 325 mg (Reliable-1 Laboratories) lists 2 distinct ingredients and Iron Sulfate (Windmill Natural Vitamins) 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.

Amount per serving (and % of the Daily Value)
IngredientFerrous Sulfate 325 mgIron Sulfate
Calcium16 mg (1%)15 mg (1%)
Iron65 mg (361%)65 mg (361%)

Amounts are per serving as DSLD gives them: Ferrous Sulfate 325 mg, 1 tablet; Iron Sulfate, 1 tablet. Current labels entered August 2018 and February 2022. Percentages of the Daily Value from 21 CFR 101.9. Source: NIH ODS Dietary Supplement Label Database.

Each product on its own