Enzymedica - Natto-K - 90 Capsules Enzymedica Natto-K is a proprietary blend containing the enzyme Nattokinase NSK-SD, which has been shown to have a high fibrinolytic activity (breaks down fibrin) and antioxidant activity. Nattokinase has been the subject of 17 studies, including two small human trials. Researchers from JCR Pharmaceuticals, Oklahoma State University, and Miyazaki Medical College tested nattokinase on 12 healthy Japanese volunteers (6 men and 6 women, between the ages of 21 and 55). The tests indicated that the natto generated a heightened ability to support circulation. On average, the volunteers" ELT (a measure of how long it takes to dissolve a blood clot) dropped by 48 percent within two hours of treatment. An additional study showed a 11% decrease in blood pressure after just two weeks. More about Natto-KThis product is a proprietary blend containing the enzyme Nattokinase NSK-SD, which has been shown to have a high fibrinolytic activity (breaks down fibrin) and antioxidant activity. Nattokinase breaks down fibrin. Fibrin is a protein that forms in the blood after trauma or injury. This is essential to stop excess blood loss but excess fibrin has been shown to contribute to cardiovascular issues, poor circulation and slow tissue repair. There are more than twenty enzymes in the body that assist in clotting the blood, while only one that can break the clot down (plasmin). Bacteria, viruses, fungi and toxins present in the blood also trigger an inflammatory condition resulting in excess cross-linked fibrin. Since there is no danger of blood loss and trauma has not occurred, this cross-linked fibrin will circulate through the blood and will stick to the walls of blood vessels. Nattokinase Proof: Blood Plasma Tests Nattokinase has been the subject of 17 studies, including two small human trials.