Patients with nephrotic syndrome are often combined with edema of gastrointestinal mucosa and ascites, which affect the digestion and absorption of diet. In terms of dietary guidance: First, if there is no abnormal renal function, protein intake requires 1.0-1.2g/kg/d, mainly high-quality protein, such as milk, eggs, lean meat. Because of the loss of large amounts of protein in nephrotic syndrome, hypoproteinemia, reduced plasma colloid osmotic pressure and persistent edema does not disappear easily, so it is necessary to eat more; second, the adequate supply of calories to prevent the body from decomposition to ensure full utilization of protein; third, the intake of salt and water should be limited, the intake of salt is about 2g per day, and the intake of water depends on the urine volume. The amount of fat intake should be reduced because it is often combined with hyperlipidemia; fourth, we should eat substances rich in vitamins and trace elements, because patients with nephrotic syndrome lose a lot of protein and lose calcium and phosphorus that are combined with protein, resulting in osteoporosis, so we should eat foods rich in vitamins and trace elements.