Comparison
Natto-K and Nattokinase Pro
Natto-K (Enzymedica) lists 5 distinct ingredients and Nattokinase Pro (Enzyme Science) 9 (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 0.55.
| Ingredient | Natto-K | Nattokinase Pro |
|---|---|---|
| Calcium | 14 mg (1%) | 14 mg (1%) |
| Magnesium | 0.04 mg (under 1%) | 0.04 mg (under 1%) |
| Bromelain | not disclosed | not disclosed |
| Glucoamylase | not disclosed | not disclosed |
| Nattokinase | not disclosed | not disclosed |
| Proteolytic Enzymes (Proteases) | not disclosed | |
| Lipase | not disclosed | |
| Amylase | not disclosed | |
| Cellulase | not disclosed |
Amounts are per serving as DSLD gives them: Natto-K, 1 capsule; Nattokinase Pro, 1 capsule. Current labels entered January 2022 and August 2025. Percentages of the Daily Value from 21 CFR 101.9. Source: NIH ODS Dietary Supplement Label Database.
Each product on its own
- Natto-KEnzymedica: every row against all products listing it
- Nattokinase ProEnzyme Science: every row against all products listing it