Comparison
Magnesium Oxide 420 mg and Magnesium 250
Magnesium Oxide 420 mg (Nationwide Pharmaceutical) lists 1 distinct ingredients and Magnesium 250 (GNC) 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.
| Ingredient | Magnesium Oxide 420 mg | Magnesium 250 |
|---|---|---|
| Magnesium | 252 mg (60%) | 250 mg (60%) |
Amounts are per serving as DSLD gives them: Magnesium Oxide 420 mg, 1 tablet; Magnesium 250, 1 tablet. Current labels entered February 2025 and October 2011. Percentages of the Daily Value from 21 CFR 101.9. Source: NIH ODS Dietary Supplement Label Database.
Each product on its own
- Magnesium Oxide 420 mgNationwide Pharmaceutical: every row against all products listing it
- Magnesium 250GNC: every row against all products listing it