NattokinaseNatto ExtractSupports Healthy CirculationDietary SupplementVeganSuitable for Vegetarians/VegansNon-GMOJarrow Formulas® NattoMax® is a highly purified Nattokinase with vitamin K removed. Nattokinase is naturally occurring in traditional Japanese food (natto) fermented by Bacillus subtilis subsp. natto.NattoMax is concentrated without solvents. Each capsule offers 2000 Fibrinolytic Units. Nattokinase is a fibrinolytic enzyme that supports healthy circulation by its effects on serine protease-mediated digestion of fibrin.