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Nattokinase
Klaire Labs (SFI Health) · 100–200 mg/day (1 capsule, 1–2 times daily, 12 hours apart)
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Log inNew here? Create an account✛ Why it's used
Nattokinase is a proteolytic enzyme whose principle effect is fibrinolysis or degradation of fibrin, a fibrillar protein that when linked together forms the mesh essential for blood clot formation.† Nattokinase also upregulates the body’s natural mechanism that guards against excess fibrin formation.
† Nattokinase may support healthy blood clotting, circulation, and platelet function by helping to maintain optimum function of the body’s normal fibrinolytic processes.† Produced from fermentation of non-GMO soybean isolates by Bacillus subtilis natto. Standardized to fibrin activity units and free of vitamin K.
Suggested use
Adults: 1 capsule, 2 times daily, 12 hours apart, with or between meals or as directed by a healthcare professional.
Supplement facts
| Nattokinase NSK-SD® (supplying 2,000 FU△) | 100 mg |
|---|
Other ingredients: Microcrystalline cellulose, vegetarian capsule (hydroxypropyl methylcellulose, water), L-leucine, and silicon dioxide. Made without most common allergens [Vegan | Non-GMO No synthetic colors, flavors, or preservatives
Dietary considerations · Gluten free · Egg free · Milk free · Tree nut free · Artificial preservative free · Fish free · Peanut free · Wheat free · Sesame free · Casein free · Artificial Color / Colour Free · Crustacean Shellfish Free · Non-GMO · Artificial Flavor / Flavour Free
Listed under Nutritional Supplements > Cardiovascular-Heart Health > Cardiovascular Formulas
⚠ Key cautions
Cautions: fermented soybean-derived proteolytic enzyme with a direct fibrinolytic (clot-degrading) mechanism. Prescription interactions: SIGNIFICANT — anticoagulants (warfarin, DOACs) and antiplatelets (aspirin, clopidogrel) carry a well-documented additive bleeding risk; contraindicated in active bleeding disorders; discontinue before scheduled surgery (perioperative bleeding-risk review required). Priority: High — direct fibrinolytic mechanism with established bleeding-risk interactions.