Nattokinase is an enzyme derived from natto, boiled soybeans fermented with Bacillus natto. Nattokinase thins the blood, or decreases its ability to clot. It has been used to treat the following: heart disease, high blood pressure, stroke, chest pain, deep vein thrombosis, atherosclerosis, hemorrhoids, varicose veins, poor circulation, and peripheral artery disease. It is also used for pain, fibromyalgia, chronic fatigue syndrome, endometriosis, uterine fibroids, muscle spasms, infertility, cancer, and beriberi.

 This product has a strength of 5,000 FU/g compared to most provisions of 2,000 FU/g.