Comparison
Systemic C and Daily Immune
Systemic C (Source Naturals) lists 8 distinct ingredients and Daily Immune (Universal Nutrition) 7 (rows of one ingredient counted once); 5 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 0.60.
| Ingredient | Systemic C | Daily Immune |
|---|---|---|
| Vitamin C | 1,000 mg (1111%) | 500 mg (556%) |
| Grape | 30 mg | 50 mg |
| Alpha Lipoic Acid | 100 mg | 50 mg |
| Quercetin | 50 mg | 100 mg |
| N-Acetyl Cysteine | 120 mg | 600 mg |
| Carbohydrate | 1 g | |
| Calcium | 110 mg (8%) | |
| Vitamin D | 50 mcg (250%) | |
| Zinc | 15 mg (136%) | |
| Flavonoid | 40 mg |
Amounts are per serving as DSLD gives them: Systemic C, 2 capsules; Daily Immune, 1 tablet. Current labels entered May 2017 and April 2021. Percentages of the Daily Value from 21 CFR 101.9. Source: NIH ODS Dietary Supplement Label Database.
Each product on its own
- Systemic CSource Naturals: every row against all products listing it
- Daily ImmuneUniversal Nutrition: every row against all products listing it