The guiding ideology of the dietary structure of the Chinese nation. The "Huangdi Neijing" puts forward the dietary compatibility principle of "five grains are for nourishment, five fruits are for help, five animals are for benefit, five vegetables are for supplement, and the smell is combined and taken to replenish lean energy". At the same time, people are also told not to overeat and avoid being addicted to the five flavors. For thousands of years, these principles have been the guiding ideology of the Chinese nation’s dietary structure and have played an important role in ensuring the health, reproduction and prosperity of the entire nation.