The protein intake of kidney disease patients should be increased or decreased according to their conditions. To avoid two wrong tendencies: one is that kidney disease is not serious and dare not eat protein, the second is that the condition needs to limit protein and do not care, which is not correct. Protein is divided into animal protein and vegetable protein, fish, shrimp, eggs, meat food is rich in animal protein, is the body’s cells, tissue is the main construction material, is very important to the human body, the presence of protein in meat is called high-quality protein, recipes with appropriate meat is needed. When the kidney function is normal, the choice of food varieties need not be overly strict, eat less fried, barbecued, preserved food. Fried and baked foods have increased methylguanidine (a nephrotoxic substance), and preserved foods have a certain amount of nitrite, which is not good for the human body. After eating protein-containing food liver decomposition, kidney excretion, so when the kidney function decreases, to properly reduce the amount of protein intake, to meet the body’s metabolic nutritional needs, but also does not increase the burden on the kidneys as the principle. The standard of protein restriction must be selected according to the degree of renal impairment and a high quality low protein diet. Most of the amino acids contained in plant proteins can be synthesized in the body and do not require exogenous supplementation, which are called non-essential amino acids. Under normal circumstances, most of the plant proteins that people eat into the body undergo metabolic changes and eventually become nitrogenous waste, which is excreted by the kidneys. In old age, the kidneys’ ability to excrete waste decreases, at this time if you do not pay attention to diet, a large intake of excessive plant protein, such as tofu, will inevitably increase the nitrogenous waste generated in the body, increasing the burden on the kidneys, so that kidney function further decline, which is not conducive to health. At the same time, tofu contains more purines, purine metabolism disorders of gout patients and patients with increased blood uric acid concentration more food easily lead to gout attacks, especially gout patients to eat less. In daily life, containing more vegetable protein and often eaten are: beans (including soy products), containing the most vegetable protein, should be avoided for patients with renal insufficiency; noodles (including pasta products), vegetable protein content is also a lot, to eat less for the better; rice, containing less vegetable protein, can be chosen as the main food, but should not be more; potatoes, starch-based, high in calories and relatively low in protein, suitable for Kidney disease patients, such as potatoes, yams, taro, lotus root, water chestnuts, pumpkin, vermicelli, lotus root powder, etc. In the case of allergic diseases such as allergic purpura, purpura nephritis should avoid some foods that may cause allergies, such as fish, shrimp, crab and other seafood foods. Some kidney patients with long duration of illness and slow recovery often discuss with each other and exchange information and experiences. It should be noted that each person has their own characteristics, do not follow each other’s example.