Comparison
MagBlue and Cal-Mag
MagBlue (Purity Products) lists 5 distinct ingredients and Cal-Mag (OL Olympian Labs) 4 (rows of one ingredient counted once); 4 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 0.72.
| Ingredient | MagBlue | Cal-Mag |
|---|---|---|
| Vitamin D | 50 mcg (250%) | 10 mcg (50%) |
| Magnesium | 350 mg (83%) | 250 mg (60%) |
| Zinc | 15 mg (136%) | 10 mg (91%) |
| Boron | 3 mg | 0.4 mg |
| Blueberry | 100 mg |
Amounts are per serving as DSLD gives them: MagBlue, 3 tablets; Cal-Mag, 3 capsules. Current labels entered February 2021 and June 2012. Percentages of the Daily Value from 21 CFR 101.9. Source: NIH ODS Dietary Supplement Label Database.