Traditional Chinese medicine (TCM) often supplements deficiency, purges excess and regulates yin and yang with food according to the holistic nutrition concept of harmony between man and nature. Since ancient times, according to the ancient theories of Taoism, Buddhism, Confucianism, medicine and various schools, the law of birth, aging, illness and death of human body has been explained by the theory of harmony and unity between human body and nature, and at the same time, various measures for physical leisure, diet and daily life have been formulated without the corresponding law between human body and nature. We advocate not only paying attention to the comprehensiveness of diet, but also advocating the right time, place and people.