Food therapy, also known as diet therapy, refers to the use of various foods, processed into food, and then used to achieve the purpose of preventing and curing diseases. It is an organic combination of Chinese cuisine and traditional Chinese medicine to become a collection of nutrition, health care, disease treatment, Yishou as a whole diet therapy, including nutrition and diet. Food therapy is the product of the combination of traditional Chinese medicine theory and culinary traditional culture, and it is the precious heritage of the 5,000-year-old traditional culture of the Chinese nation. What people usually call "food therapy" is the method of using food to treat diseases.

The effects and characteristics of the diet can be summarized as improving physical and mental quality and optimizing the quality of life. According to specific functions, it can be divided into: hunger and strong body, beauty and beauty, nourishing qi and blood, balancing yin and yang, recuperating and eliminating evil, preventive health, disease treatment and Longevity, etc. Food is able to treat diseases mainly because it has the function of medicine and has the same performance as medicine, that is, it has the "four flavors and five flavors" as traditional Chinese medicine calls it.