Comparison
Magnesium Bis-Glycinate and Chelated Cal-Mag
Magnesium Bis-Glycinate (Source Naturals) lists 3 distinct ingredients and Chelated Cal-Mag (Carlson) 3 (rows of one ingredient counted once); 3 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 Bis-Glycinate | Chelated Cal-Mag |
|---|---|---|
| Calcium | 140 mg (11%) | 200 mg (15%) |
| Magnesium | 200 mg (48%) | 100 mg (24%) |
| Protein | 1 g | 1 g |
Amounts are per serving as DSLD gives them: Magnesium Bis-Glycinate, 2 tablets; Chelated Cal-Mag, 1 tablet. Current labels entered August 2023 and August 2025. Percentages of the Daily Value from 21 CFR 101.9. Source: NIH ODS Dietary Supplement Label Database.
Each product on its own
- Magnesium Bis-GlycinateSource Naturals: every row against all products listing it
- Chelated Cal-MagCarlson: every row against all products listing it