Huangdi Neijing advocates that "knowing astronomy from the top, geography from the bottom and personnel from the middle can last for a long time", which shows that Chinese medicine regards people and society as a whole from the beginning and insists on treating and preventing diseases from the whole of people and society.

This close relationship between man and nature is also reflected in diet and nutrition. As early as more than two thousand years ago, ancient doctors realized that "taste", as a product of nature, had a specific connection and selection effect on human organs. In addition, food also has the functions of "restraint", "restraint" and "transformation"

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.