Nattokinase is not the same thing as natto gum.

Nattokinase is a naturally-occurring proteolytic enzyme derived from natto, a traditional Japanese food produced from the fermentation of soybeans with Bacillus subtilis natto. Basically, it is an enzyme that digests fibrin both directly and indirectly. Indirectly, it activates pro-urokinase and tissue plasminogen activator (t-PA), supporting

the fibrinolytic activity of plasmin. These combined actions promote healthy platelet function, circulation and blood flow. 

Nattokinase is natural medicine for dissolving thrombus,lowering blood pressure, reducing blood fat.

It is mainly used for health care product and pharmaceuticals industry.