Nattokinase NSK-SD®

Supports Healthy Blood Flow


Benefits and Features

Supports healthy blood clotting, circulation, and platelet function by helping to maintain your body's ability to break down unwanted blood clots in vessels. Free of vitamin K.

Detail Overview

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.

Serving Size 1 Capsule
Amount Per Capsule % Daily Value
Nattokinase NSK-SD®‡
(supplying 2,000 FUΔ)
100 mg *
* Daily value not established

Other Ingredients:

Microcrystalline cellulose, vegetarian capsule (hydroxypropyl methylcellulose, water), L-leucine, and silicon dioxide.

Contains: Soy.

ΔFibrinolytic units or fibrin degradation units (FU) is a measure of enzyme activity. Nattokinase NSK-SD® is standardized to contain 2,000 FU per capsule.

NSK-SD® is a registered trademark of Japan BioScience Laboratory, Co., Ltd.

Suggested Use

Adults: 1 capsule, 2 times daily, 12 hours apart, with or between meals or as directed by a healthcare professional. Use is contraindicated in persons with history of bleeding tendency.

Allergy Statement

Made without most common allergens: milk/casein, eggs, fish, shellfish, tree nuts, peanuts, wheat, gluten, sesame. Vegan, Non-GMO. No synthetic colors, flavors, or preservatives.


Consult with your physician if you are pregnant or nursing, or have any medical condition, or taking prescription drugs, or under the age of 18 years. KEEP OUT OF REACH OF CHILDREN.