1, protein intake NS urine protein to lose protein mainly, resulting in hypoproteinemia, so that the plasma colloid osmotic pressure decreases, thus making swelling stubbornly difficult to eliminate, the body’s resistance also decreases. Adjust the protein intake according to the function of the kidneys, in the absence of renal failure, adults should ensure 90-100g per day, in the case of poor appetite to eat, you can first 1.0/kg per day, when the appetite improves, you can gradually increase the protein intake until 1.5g/kg per day. However, in cases of renal insufficiency or azotemia, protein intake must be limited to about 20-40 g per day to maintain positive nitrogen balance in the body. After determining the protein intake, help the patient to choose high quality protein (such as milk, eggs, lean meat, etc.) with high biomass to provide sufficient amino acids. However, foods containing purine and nucleoprotein such as heart, liver, kidney, offal, fish eggs, etc. should be prohibited. Avoid increasing the burden on the kidneys due to elevated uric acid. For NS patients who can be relieved in the short term, it is not necessary to restrict the intake of fat; however, for refractory NS patients with long-term hyperlipidemia, the intake of fat should be restricted (such as fatty meat, etc.). 2, potassium, sodium and water intake According to the urine volume and edema, adjust the intake of sodium, potassium and water. Because of the decrease of plasma colloid osmotic pressure in NS patients, the secretion of aldosterone increases, and potassium salt is lost due to the application of glucocorticoids, thiazides and tachyphylaxis. In principle, sodium and potassium should be limited. Where there is edema, hypertension and other conditions, should be strictly avoid salt, and not a single salt (the main component is sodium chloride can not eat, even food containing sodium, such as soda or old alkali buns, noodles should be eaten as little as possible or not, but with yeast fermentation can eat) in the case of a low-salt diet, the water intake may not necessarily be limited, but in the case of severe edema and little urine, and even urinary shutdown, control the water intake in 500ml or so. If the 24h urine volume is more than 1000ml and there is no obvious edema, you can give a low salt diet with sodium intake of 2-4g per day. If the urine volume is less than 500ml or there is hypertension, edema or heart failure, you should limit the daily sodium intake to 1-2g until the edema is gone and the plasma protein is restored or close to normal, then gradually lift the restriction on sodium.