Patients with nephritis usually have no obvious contraindications to eating fruits, but if combined with renal insufficiency, edema and other diseases such as diabetes mellitus, people need to choose fruits that are low in potassium, low in sugar and low in water. 1. Nephritis combined with renal insufficiency: avoid potassium-containing fruits as much as possible, such as bananas, melons and other fruits, which are rich in potassium, and may lead to hyperkalemia and life-threatening cardiac arrest when patients with renal insufficiency eat too much of them. 2. Nephritis combined with edema: eating fruits with much water, such as peach, watermelon, etc., may aggravate edema. 3. Nephritis combined with other diseases: for example, diabetes, fruits with high sugar content need to be eaten less, such as grapes, watermelon, peaches, etc., which may not be conducive to the recovery of the disease. Patients with nephritis are advised to have a low-salt, low-fat, high-quality, low-protein diet, go to a regular hospital in time, standardize treatment under the guidance of a doctor, and consult a dietitian for dietary advice if necessary.