Dietotherapy refers to a method of using some medicinal foods to prevent and improve health.

Drug therapy refers to the use of some materials with obvious tendency (including plants, animals and minerals, etc.). ) to correct the bias of the human body with the bias of things, so as to balance yin and yang and restore health.

Dietotherapy focuses on prevention and rehabilitation, while drug therapy focuses on treatment and first aid. In traditional Chinese medicine, sometimes the boundary between dietotherapy and drug treatment is not particularly clear. For example, many classic prescriptions not only have the significance of dietotherapy, but also have the characteristics of drug therapy, such as: Sijunzi, Danggui Ginger Mutton Soup.