In people with normal kidney function, part of the protein in food is digested and absorbed by the body, and part of it is metabolized to produce nitrogenous waste products, such as urea, which is eliminated from the body through the kidneys. When suffering from chronic kidney disease, the ability of the kidneys to excrete metabolites is greatly reduced, so the waste products of protein breakdown and metabolism will accumulate in the blood and become uremic toxins. Low-protein diet can reduce the production and accumulation of these metabolic toxins. Therefore, low-protein therapy is an important tool in the non-dialysis treatment of chronic kidney disease. Simple method to calculate daily protein intake, five one principle. 1 tael of meat = 7g protein 1 egg = 7g protein 1 bag of milk = 7g protein 1 pound of squash = 5g protein 1 serving of fruit = 1g protein Staple food: 3-4 taels = 12-16g protein Fats and oils: 3-4 spoons = 30-40g protein