Protein is certainly the best. If protein tonic does not count, you can choose natural foods: eggs (including egg yolk), skim milk, deep-sea fish, lean beef, chicken breast, freshwater fish and shrimp (above counted as high-quality animal protein), soybeans (soybean milk), oats, broccoli, nuts (walnuts, peanuts, etc. ) and potatoes (hot).

Note that the simpler the cooking method, the better. Cooked food is usually cooked in water. At the same time, other nutrients, such as vitamins and trace elements, should be supplemented to ensure the balance of carbon and water intake.