Enzyme

Nattokinase

Provisional Strong Scoreenzyme

Hermetica Superfood Encyclopedia

Published March 18, 2026Last updated March 18, 2026Methodology · Editorial policy · Report an error

Evidence review status: unreviewed

Legacy index-continuity record: the score and narrative are provisional and must not be represented as validated or human-approved.

Review flags: AWAITING_SEMANTIC_VALIDATION

Provisional Summary

Nattokinase is a fibrinolytic enzyme derived from natto (fermented soybeans) that directly breaks down fibrin to support cardiovascular health. The enzyme works by cleaving fibrin clots and activating plasminogen, promoting healthy blood circulation and reducing thrombotic risk.

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Screened PMID Records

Reported Benefits

Pending

Synergy Review

At a Glance

CategoryEnzyme

GroupEnzyme

Public Score StatusProvisional Strong

Primary Keywordnattokinase benefits

Nattokinase close-up macro showing natural texture and detail — rich in fibrinolytic, antithrombotic, anti-inflammatory

Nattokinase — botanical close-up

Reported Benefits (Provisional)

Supports cardiovascular health by promoting healthy blood circulation and reducing blood viscosity, which may lower the risk of clot formation. - Aids in the breakdown of fibrin, a protein involved in blood clotting, helping to maintain clear arteries and optimal blood flow. - May reduce blood pressure by improving vascular flexibility and decreasing arterial stiffness, as shown in studies with reductions of up to 10%. - Enhances heart health by lowering LDL cholesterol and triglyceride levels, contributing to a healthier lipid profile. - Supports healthy aging by protecting against oxidative stress and inflammation, both linked to cardiovascular disease. - May improve recovery after physical exertion by reducing muscle soreness and supporting efficient circulation. - Promotes brain health by supporting microcirculation, which can enhance cognitive function and mental clarity. - Helps maintain normal platelet function, reducing the risk of unwanted clotting events.

Origin & History

Natural habitat

Nattokinase is an enzyme derived from natto, a traditional Japanese food made from fermented soybeans. It is produced through the fermentation process involving the bacterium Bacillus subtilis var. natto.

“Nattokinase has been used in Japan for centuries as part of the traditional diet, known for its cardiovascular benefits.”Traditional Medicine

Research Narrative (Provisional)

Clinical trials and observational studies support its role in cardiovascular health, particularly in promoting blood flow and reducing clot formation.

Preparation & Dosage

Dosage guidance is withheld because the publication gate has not recorded adequate support for this profile.

Nutritional Profile

- Contains fibrinolytic activity, aiding in blood clot breakdown. - Rich in protein due to its soybean origin. - Contains vitamin K2, important for bone and cardiovascular health.

Reported Mechanism (Provisional)

Mechanism of Action

Nattokinase directly cleaves fibrin through its serine protease activity, breaking down existing blood clots and preventing new clot formation. The enzyme also activates tissue plasminogen activator (tPA) and converts plasminogen to plasmin, enhancing the body's natural fibrinolytic system. Additionally, nattokinase inhibits plasminogen activator inhibitor-1 (PAI-1), further promoting clot dissolution.

Clinical Narrative (Provisional)

Human studies using 2000-6000 FU (fibrinolytic units) daily have demonstrated nattokinase's ability to reduce blood viscosity by 8-12% and improve circulation markers within 2-8 weeks. A randomized controlled trial with 86 participants showed significant reductions in fibrinogen levels and improved arterial elasticity after 8 weeks of supplementation. Several smaller studies have reported decreased blood pressure and improved lipid profiles, though larger long-term trials are needed to confirm cardiovascular protection. The evidence is promising but still emerging, with most studies having 12-week durations and moderate sample sizes.

Also Known As

Nattokinase enzymeNKNatto kinaseFibrinolytic enzymeBacillus subtilis natto proteaseJapanese fibrinolytic enzymeSubtilisin NAT

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These statements have not been evaluated by the Food and Drug Administration. This content is for informational purposes only and is not intended to diagnose, treat, cure, or prevent any disease.

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