2. Diet law: The diet must adapt to the long-term habits and ways of human beings, eat three meals a day, regularly, quantitatively, evenly, and not overeating.
3. Balanced diet: The quality of diet must be comprehensive and complete. Because people want to adapt to the environment, then the elements in the human body must be complete, and nothing can complete the physiological operation of the human body. Therefore, the diet must be diversified to prevent picky eaters from being partial to food.