Platelet aggregation inhibitor and supplement food effective for inhibiting platelet aggregation

Abstract

An object of the present invention is to provide a platelet aggregation inhibitor without side effects and a supplement food effective for inhibiting platelet aggregation. The platelet aggregation inhibitor has nattokinase as an active ingredient and has Bacillus natto culture extract, containing a high proportion of nattokinase containing 1 μg/g or less of vitamin K 2 on a dry weight basis, as an active ingredient. The supplement food effective for inhibiting platelet aggregation has nattokinase as an active ingredient and has Bacillus natto culture extract, containing a high proportion of nattokinase containing 1 μg/g or less of vitamin K 2 on a dry weight basis; as an active ingredient.

What is claimed is:  
     
         1 . A platelet aggregation inhibitor whose active ingredient is nattokinase.  
     
     
         2 . A platelet aggregation inhibitor whose active ingredient is  Bacillus natto  culture extract containing a high proportion of nattokinase, the nattokinase containing 1 μg/g or less of vitamin K 2  on a dry weight basis.  
     
     
         3 . A supplement food effective for inhibiting platelet aggregation whose principal ingredient is nattokinase.  
     
     
         4 . A supplement food effective for inhibiting platelet aggregation whose principal ingredient is  Bacillus natto  culture extract containing a high proportion of nattokinase, the nattokinase containing 1 μg/g or less of vitamin K 2  on a dry weight basis.