Nattokinase is a fibrinolytic protease, which by nature is an enzyme whose basic function is to hydrolyze proteins. Because proteins have a fairly complex organic amino acid structure, they require these types of enzymes to break protein molecules into absorbable and digestible amino acids. Nattokinase has the distinct ability to breaks down the adhesive substance that makes arterial plaque very sticky. In this way, it supports a preventative and reversing effect on blood clotting and plaque build up in the arteries. visit us: http://www.tasmanhealth.co.nz/doctors-best-nattoki nase/ for more information!!