NOW - Nattokinase - 60 Vegetable Capsule(s) - NPN: 80090669 -- Nattokinase is an enzyme isolated from Natto, a traditional Japanese fermented soy food. Natto has been consumed for thousands of years for its numerous health promoting properties. More recently, both clinical and non-clinical studies have demonstrated that Nattokinase can help to promote heart and circulatory health by supporting normal blood clotting functions. NOW® Nattokinase is derived from non-GMO soy and has 2, 000 FUs (Fibrinolytic Units) of activity per 100 mg capsule.