Uremic patients can eat yams, and they can be eaten as a staple food instead of rice and noodles. Uremic patients need to pay attention to the diet as little as possible to eat foods high in phosphorus and potassium, but at the same time also need to supplement sufficient energy. Common wheat flour, rice and other staple foods, because of its high protein content, so its phosphorus content is relatively high, after eating too much can easily cause hyperphosphatemia. The yam is mainly starchy and contains less phosphorus, which makes it suitable for uremic patients, while the potassium in yam is relatively low, containing only 20-30 mg per 100 g. It is recommended that the cooking method is mainly boiling, which can remove some of the phosphorus and potassium, and it is not recommended to deep-fry or stir-fry, which will result in excessive extra fat.