Mixed evidenceenzyme
Nattokinase for High Blood Pressure
Nattokinase is an enzyme extracted from natto (fermented soybeans) that breaks down fibrin and is thought to reduce blood viscosity and modestly suppress renin activity, which can lower blood pressure.
How strong is the research?
Mixed evidence
3-year independent USC trial in adults without known cardiovascular disease found no significant difference vs placebo in progression of carotid intima-media thickness (subclinical atherosclerosis), the trial's primary hard outcome
How much to take
2000 mg