Natural Factors Nattokinase Vcap, 100mg, 60 Count - Supports circulatory health - Whole Natto concentrate Nattokinase from Natural Factors is a unique whole natto concentrate from fermented non-GMO soy beans in a highly stable form ensuring optimal activity. Supports circulatory health and already healthy levels of blood clotting factors within a normal range. Suggested Usage 1 capsule up to 2 times per day or as directed by a health professional. Best when taken after a meal.