Patients with iga nephropathy have no edema and normal renal function. All fruits can be eaten. It is recommended that patients with iga nephropathy eat more fresh fruits and vegetables, including apples, pears, bananas, oranges, pineapples, etc. In case of edema or obvious edema, in addition to strictly limiting salt, the daily intake of 2-3 g, or even less than 2 g of salt, should also limit the intake of water in food, including drinking water, soup, fruits, and vegetables. In this case, the intake of all fruits must be reduced. In case of renal failure, it is necessary to reduce the intake of fruits with high potassium content, such as bananas, oranges, pomelos, oranges and other fruits with high potassium content. Hyperkalemia is likely to lead to malignant arrhythmia, which may endanger the patient's life in serious cases.