What Is Nattokinase

Nattokinase is a serine protease from fermented soybeans with fibrinolytic and antiplatelet activity. Learn what the research actually shows—and its safety limi

NSK-SD is a trademarked, activity-standardized nattokinase extract. Learn what standardization means, why it matters, and what the evidence does and does not sh

Comparing nattokinase supplements to eating natto: enzyme activity, vitamin K2, dosing, safety, and which option may suit your health goals.

Discover how nattokinase is produced from natto, the traditional Japanese fermented soybean food, and what the science says about its fibrinolytic effects.

As we navigate the complexities of aging, concerns about cardiovascular health often come to the forefront. Many individuals over 40

Learn how nattokinase, a serine protease from fermented soybeans, degrades fibrin and supports clot clearance. Evidence-based overview of its proposed mechanism

Learn how Dr. Hiroyuki Sumi discovered nattokinase in 1987, what the enzyme does, and why his accidental lab observation changed enzyme research.