Analysis: Eating according to the body is to identify the individual's physique with the help of theoretical tools of Chinese medicine, such as the classification and standards of Chinese medicine's physique, and combine the identified physique to give food appropriate sexual and taste effects. Food application is to determine the corresponding principles of food and nutrition according to the results of physical fitness appraisal, select the corresponding food according to its principles, and then formulate the corresponding recipes according to the formula principle, so as to achieve the purpose of improving physical fitness and promoting health.