There are four main points in TCM diet health preservation: first, it is necessary to "harmonize five flavors" for instant eating, with reasonable diet and comprehensive nutrition; The second is to be "temperate", that is, not too full or too hungry; Third, we should pay attention to food hygiene to prevent diseases from entering the mouth; Fourthly, Chinese medicine pays special attention to dietary taboos. Therefore, the E option is not the recommended method for TCM health preservation.