Doctor's Best Nattokinase is a powerful enzyme derived from natto, a traditional fermented soybean food popular in Japan. This high-quality supplement supports healthy circulation by helping maintain normal fibrinogen levels, a key factor in blood clotting.
Our nattokinase is produced using a carefully controlled process. Non-GMO soybeans are cooked and fermented using beneficial Bacillus subtilis bacteria, which naturally produce nattokinase. This process ensures a potent and pure supplement, free from Vitamin K2.





