Superfood GreenFood Nutrition Nattokinase contains a daily dose of 200 mg Nattokinase 20,000FU. It is an enzyme that belongs to the group of serine proteases, ie fibrin-cleaving enzymes. It is obtained from the Japanese food natto, which is produced by fermenting soybeans with the friendly bacterium Bacillus subtilis natto. Superfood is suitable for athletes and people focused on a healthy lifestyle. Its production is certified according to ISO 22000: 2018 and the packaging is sufficient for 45 days of use.