Experimental, clinical and toxicological studies with nattokinase showed no adverse reactions when taking this supplement. Nattokinase is an enzyme present in everyday diet of Japanese population, which additionally supports its safety. Nevertheless, bacteria which are used for the fermentation of the soybeans (Bacillus subtilis natto) are not pathogenic (do not cause diseases in humans).

Additional Caution Needed

Caution is needed, as well as consultation with the physician before taking Nattokinn® if cases of:

  • higher risk of bleeding
  • taking oral anticoagulant therapy
  • lower blood pressure

* Consult your physician before taking Nattokinn®.

Find details on safe administration of Nattokinn® in Instructions for Use.