It is good to eat protein-containing foods such as milk, dietary fiber-containing foods such as black rice, and vitamin-rich foods such as spinach 2 weeks after knee replacement surgery. 1. Foods containing protein: such as milk and eggs can replenish protein and provide energy. 2. Foods containing dietary fiber: such as oats, black rice, etc., can promote intestinal peristalsis, so that food can quickly pass through the intestinal tract and promote defecation. 3. Foods with many vitamins: such as leeks, celery, etc., are a class of organic compounds that play an important role in metabolic regulation in the body. After knee replacement surgery, if there is any discomfort, it is recommended to go to the hospital in time to see a doctor