Comparison

Sustained Release Niacin 250 mg and Niacin 250 mg

Sustained Release Niacin 250 mg (Windmill Natural Vitamins) lists 2 distinct ingredients and Niacin 250 mg (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.

Amount per serving (and % of the Daily Value)
IngredientSustained Release Niacin 250 mgNiacin 250 mg
Calcium140 mg (11%)125 mg (10%)
Niacin250 mg (1563%)250 mg (1563%)

Amounts are per serving as DSLD gives them: Sustained Release Niacin 250 mg, 1 tablet; Niacin 250 mg, 1 tablet. Current labels entered July 2024 and January 2022. Percentages of the Daily Value from 21 CFR 101.9. Source: NIH ODS Dietary Supplement Label Database.

Each product on its own