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蛋白质是六大营养素之一,是建造人体的重要原料,在组成人体的物质中,蛋白质大约占18%,除去水分以外,按人身体的干重计算,蛋白质大约占了一半。人体的骨骼、肌肉、皮肤、内脏等各个器官的组成,都少不了蛋白质。青春期是人一生中身体发育迅速的时期,身高、体重都不断地在增加。为
Protein is one of the six nutrients, is an important raw material to build the human body, the composition of the human body of substances, about 18% of protein, in addition to water, according to the dry weight of the body, the protein accounts for about half. The body’s bones, muscles, skin, internal organs and other organs of the composition, ultimately, protein. Adolescence is a period of rapid physical development in a person’s life, with increasing height and weight. for