Comparison
L-Tryptophan 500 mg and L-Tryptophan 1000 mg
L-Tryptophan 500 mg (Nutricost) lists 2 distinct ingredients and L-Tryptophan 1000 mg (NOW) 1 (rows of one ingredient counted once); 1 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 0.58.
| Ingredient | L-Tryptophan 500 mg | L-Tryptophan 1000 mg |
|---|---|---|
| Tryptophan | 500 mg | 1,000 mg |
| Black Pepper | 5 mg |
Amounts are per serving as DSLD gives them: L-Tryptophan 500 mg, 1 capsule; L-Tryptophan 1000 mg, 1 tablet. Current labels entered October 2024 and October 2012. Percentages of the Daily Value from 21 CFR 101.9. Source: NIH ODS Dietary Supplement Label Database.
Each product on its own
- L-Tryptophan 500 mgNutricost: every row against all products listing it
- L-Tryptophan 1000 mgNOW: every row against all products listing it