Poor kidney function should pay attention to the following aspects: you can eat fresh fruits and vegetables to replenish multivitamins, foods with high potassium should be eaten as little as possible, such as purple cabbage, mushrooms, kiwi, potatoes, watermelon, oranges, grapefruit, etc. Patients with renal insufficiency are prone to hyperkalemia. They can eat high quality protein, preferably animal protein, such as lean meat, chicken, egg whites, milk and other soy products; eat as little as possible of nutty foods; have a light diet, eat less salt and foods high in salt, such as pickles, cured meat, sausages, etc.; eat less greasy food, try not to eat animal offal, fatty meat, etc.