You can eat yam for kidney disease. Yam is rich in calcium, iron, vitamins, carbohydrates and protein, which can supplement the nutrition. However, yam should be eaten in moderation, but also pay attention to the way of cooking, should pay attention to low-salt, low-fat, light-based. The diet of patients with kidney disease should follow the dietary principles of low salt, low fat, high quality and low protein. Low salt: Salted vegetables, pickles and other high salt content, should reduce the intake of such food. Low fat: Eat less fatty foods such as fatty meat. High-quality low-protein: patients need to control protein intake, high-quality low-protein diet, including eggs, lean meat, milk and so on. Patients with kidney disease should go to the hospital in time and make diet and treatment plan under the guidance of professional physicians.