The earliest and most prominent manifestations of uremia diet are in the digestive tract, such as anorexia, abdominal discomfort, nausea, vomiting, diarrhea, glossitis, stomatitis and gastrointestinal bleeding. Uremia itself is prone to abnormal diet, so it is very important to properly care for uremia diet. Patients with azotemia and uremia should be given priority to with a low-protein diet, and protein should be given priority to with animal protein containing essential amino acids, such as milk, eggs, fish and lean meat. The daily intake of protein is 20g. This not only ensures the supply of essential amino acids, but also enables the body to synthesize non-essential amino acids with non-protein nitrogen under the condition of low protein supply, thus reducing azotemia. Food should be easy to digest and contain enough vitamins, especially vitamins B, C and D. It is necessary to avoid the mechanical damage of coarse grains to the digestive tract and lead to gastrointestinal bleeding. Patients with good appetite in azotemia should have no less than 35 calories per kilogram of body weight, but in uremia, it depends on the appetite of patients. If the patient has a lot of urine and edema is not obvious, the amount of drinking water is generally not limited.