The foods and drinks derived from koji, which is the rice fermented by aspergillus orizae, are the foundation of Japanese foods, which include sake, shochu, sakekasu, miso, mirin, amazake, soy sauce and shio koji. All of the drinks and foods derived from koji have astonishing medicinal effects. The green tea and natto, which are not related to koji, have also equally great medicinal benefits contributing to the world longest longevity of Japanese...