Health Chef's Comments: Eight amino acids that the human body cannot synthesize: methionine, threonine, tryptophan, valine, leucine, isoleucine, phenylalanine and lysine. They are all essential amino acids in our body, which can only be obtained through food intake, then digested in the body and turned into a part of cells after ammonia conversion.

Protein, which is composed of amino acids, is another important energy-supplying substance, and each gram of protein provides 4 calories. But the more important role of protein is growth and metabolism. Excessive intake of protein will increase the burden on the kidneys. Therefore, the intake of protein should be balanced between supply and demand according to the nutritional status and growth and development requirements. Generally, protein's intake of calories accounts for about 20% of the total calories. (To learn more about health care, please pay attention to WeChat WeChat official account: Health Lecture Hall (or sythealth))