Monograph
Nattokinase — Fibrinolytic Enzyme Supplement
Nattokinase is a serine protease enzyme extracted from natto, the traditional Japanese fermented soybean food. It was discovered and characterized by Sumi and colleagues in 1987 as the active fibrinolytic constituent in natto, with strong in vitro…
By Kristopher Crawford
·
30 May 2026
·
5 min read
Nattokinase is a serine protease enzyme extracted from natto, the traditional Japanese fermented soybean food. It was discovered and characterized by Sumi and colleagues in 1987 as the active fibrinolytic constituent in natto, with strong in vitro…
In the full monograph
- What it is, and how it works
- What the evidence shows — randomized trials, observational data, animal studies, graded and cited
- Dose, form, and timing
- What to expect, and how soon
- Who should be careful, and what to check first
- The verdict
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