Comparison
Mega 100 and Nutra-I
Mega 100 (Nature's Best) lists 32 distinct ingredients and Nutra-I (LifeTIME) 28 (rows of one ingredient counted once); 28 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 0.80.
| Ingredient | Mega 100 | Nutra-I |
|---|---|---|
| Vitamin C | 250 mg (278%) | 250 mg (278%) |
| Calcium | 44 mg (3%) | 100 mg (8%) |
| Vitamin B6 | 100 mg (5882%) | 80 mg (4706%) |
| Vitamin D | 10 mcg (50%) | 25 mcg (125%) |
| Magnesium | 25 mg (6%) | 40 mg (10%) |
| Vitamin B12 | 100 mcg (4167%) | 100 mcg (4167%) |
| Zinc | 15 mg (136%) | 15 mg (136%) |
| Niacin | 100 mg (625%) | 75 mg (469%) |
| Vitamin E | 150 IU | 100 IU |
| Potassium | 10 mg (under 1%) | 10 mg (under 1%) |
| Folate | 400 mcg | 400 mcg |
| Vitamin A | 7,500 IU | 10,000 IU |
| Pantothenic Acid (Vitamin B5) | 100 mg (2000%) | 75 mg (1500%) |
| Riboflavin | 100 mg (7692%) | 80 mg (6154%) |
| Thiamin | 100 mg (8333%) | 80 mg (6667%) |
| Biotin | 100 mcg (333%) | 25 mcg (83%) |
| Iron | 4 mg (22%) | 18 mg (100%) |
| Chromium | 200 mcg (571%) | 25 mcg (71%) |
| Selenium | 25 mcg (45%) | 25 mcg (45%) |
| Manganese | 6 mg (261%) | 6 mg (261%) |
| Iodine | 150 mcg (100%) | 150 mcg (100%) |
| Choline | 100 mg (18%) | 50 mg (9%) |
| Inositol | 100 mg | 75 mg |
| Phosphorus | 35 mg (3%) | 50 mg (4%) |
| Flavonoid | 50 mg | 25 mg |
| PABA | 100 mg | 75 mg |
| Rutin | 50 mg | 25 mg |
| Betaine Hydrochloride | 30 mg | 25 mg |
| Copper | 0.5 mg (56%) | |
| Glutathione | 5 mg | |
| Cysteine | 25 mg | |
| Rose (unspecified) | 5 mg |
Amounts are per serving as DSLD gives them: Mega 100, 1 tablet; Nutra-I, 1 tablet. Current labels entered September 2019 and December 2011. Percentages of the Daily Value from 21 CFR 101.9. Source: NIH ODS Dietary Supplement Label Database.