Nattokinase is an enzyme derived from natto, a traditional Japanese food using soybeans fermented with bacillus subtilis natto. This enzyme has demonstrated support for healthy blood flow throughout the body.
NSK-SD was the first nattokinase introduced into the US market, and it has established quality levels for all nattokinase products. It is vegetarian, free of vitamin K2 and supported by comprehensive safety studies. Each batch is tested to ensure potency.
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