If you are weak, you can eat the following foods: First, black-bone chicken, because it contains a variety of nutrients necessary for human body, especially lysine and methionine, so black-bone chicken has a high nourishing effect on human body; Second, it is rich in a variety of high-quality protein foods, such as milk, lean meat and bean products; Third, for foods rich in vitamins, you can consider eating more fresh fruits and vegetables, such as carrots, tomatoes, mushrooms and so on.