What effect does protein have on human health?

Protein is the material basis of life. Without protein, there would be no life. Therefore, it is a substance closely related to life and various forms of life activities. Protein participates in every cell and all important parts of the body. Protein accounts for 16.3% of human body weight, that is, an adult weighing 60kg has about 9.8kg of protein in his body. There are many kinds of protein in human body, with different properties and functions, but they are all composed of more than 20 kinds of amino acids in different proportions, which are constantly metabolized and updated in the body. The ingested protein is digested and decomposed into amino acids in the body, which is mainly used to recombine into human protein according to a certain proportion after absorption. At the same time, the new protein is constantly metabolized and always in a dynamic balance. Therefore, the quality and quantity of food protein and the proportion of various amino acids are all related to the amount of protein synthesized by the human body, especially the growth and development of teenagers, the prenatal and postnatal care of pregnant women and the health and longevity of the elderly, which are closely related to the amount of protein in the diet.