Comparison
Mega B-100 and Super B100
Mega B-100 (Puritan's Pride) lists 15 distinct ingredients and Super B100 (Windmill) 16 (rows of one ingredient counted once); 15 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 0.97.
| Ingredient | Mega B-100 | Super B100 |
|---|---|---|
| Vitamin B6 | 100 mg (5882%) | 100 mg (5882%) |
| Vitamin B12 | 100 mcg (4167%) | 100 mcg (4167%) |
| Niacin | 100 mg (625%) | 100 mg (625%) |
| Folate | 1,333 mcg DFE (333%) | 665 mcg DFE (166%) |
| Pantothenic Acid (Vitamin B5) | 100 mg (2000%) | 100 mg (2000%) |
| Riboflavin | 100 mg (7692%) | 100 mg (7692%) |
| Thiamin | 100 mg (8333%) | 100 mg (8333%) |
| Biotin | 1,000 mcg (3333%) | 100 mcg (333%) |
| Inositol | 0.1 mg | 100 mg |
| Alfalfa | not disclosed | not disclosed |
| PABA | 100 mg | 100 mg |
| Parsley | not disclosed | not disclosed |
| Lecithin | not disclosed | not disclosed |
| Rice Bran | not disclosed | not disclosed |
| Watercress | not disclosed | not disclosed |
| Calcium | 100 mg (8%) |
Amounts are per serving as DSLD gives them: Mega B-100, 1 capsule; Super B100, 1 tablet. Current labels entered May 2023 and May 2025. Percentages of the Daily Value from 21 CFR 101.9. Source: NIH ODS Dietary Supplement Label Database.
Each product on its own
- Mega B-100Puritan's Pride: every row against all products listing it
- Super B100Windmill: every row against all products listing it