Different eating habits and cultural differences, Europe and the United States generally exercise from an early age. In China, except for sports students, there is little exercise, and ordinary people in China don't know much about diet. We only know that rice and steamed bread are staple foods, and it is important to eat vegetables, but meat is also very important for human development and should be eaten like staple foods. Protein is an important part of human body. Many people lack the intake of protein, and even only eat rice noodles, regardless of protein.