1. Supply from protein. Dietary treatment of chronic nephritis should determine the intake of protein according to the degree of renal function damage. If the course of disease is long and the renal function damage is not serious, there is no need to strictly limit the protein in food, but it should not exceed per kilogram of body weight 1 g per day, and the high-quality protein should reach more than 50%.

2. Because some patients have limited protein, carbohydrates and fats are the main sources of heat energy supply, and energy supply depends on labor intensity. Rest, adults can provide126 kj ~147 kj (30 ~ 35 kcal) /kg body weight every day. And meet the needs of patients' activities.

3. Control the intake of sodium salt. In case of severe edema and hypertension, the amount of sodium salt should be controlled below 2g/ day, and even a salt-free diet is given, and low salt is generally appropriate.

Food choice of chronic nephritis;

1. Adequate vitamins, especially vitamin C, should be given, because patients with chronic nephritis may be anemic for a long time, and vitamin C supplementation can increase the absorption of iron, so foods such as tomatoes, green leafy vegetables, fresh dates, watermelons, radishes, cucumbers, watermelons, oranges, kiwis and natural juices should be eaten.

2. People with poor appetite can supplement vitamin C preparations; At the same time, foods rich in vitamin B and folic acid, such as animal viscera and green leafy vegetables, should be supplemented to help correct anemia. When you have high blood potassium, you should avoid foods with high potassium content and choose vegetables and fruits carefully. Patients with chronic nephritis should avoid sugary drinks and irritating foods.