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Nattokinase
An enzyme extracted from natto (fermented soybeans) that can help dissolve blood clots — it's been used in Japan for centuries and is gaining attention worldwide.
Benefits
- +May help dissolve blood clots (fibrinolytic activity)
- +Supports healthy blood circulation
- +May help reduce the risk of deep vein thrombosis
- +Gentler and longer-lasting than aspirin for blood flow support
- +Has been studied for supporting healthy blood pressure
Dosage & Cost
Range2000 FU (fibrinolytic units)/day — equivalent to about 30–40 mg extract
TimingOn an empty stomach or between meals for best fibrinolytic activity
Daily cost0.20–0.60
Dosing is measured in FU (fibrinolytic units), not mg. Do NOT combine with blood-thinning medications without doctor guidance.
Side Effects
- !Can increase bleeding risk — do NOT take with blood thinners (warfarin, aspirin, etc.) without medical supervision
- !Avoid before surgery
- !May lower blood pressure
- !Can cause stomach upset or digestive discomfort
- !May cause nosebleeds or easy bruising
Food Sources
- • Natto (fermented soybeans) — a traditional Japanese food
- • Only natto contains meaningful amounts naturally
References & Links
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This page is for informational purposes only. The information here has not been evaluated by the Food and Drug Administration (FDA). No supplement discussed on this page is intended to diagnose, treat, cure, or prevent any disease. Please consult your doctor or a qualified healthcare professional before taking any dietary supplement.