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铁是人体生理过程的必需元素,它是血红蛋白的主要原料之一。如果摄取或吸收利用不足,青少年及孕妇,特别是婴幼儿容易发生缺铁性贫血。健康成人体内含铁总量为3～5克,体内总铁量约66.5％组成血红蛋白,30％为贮存铁。4％为组织铁,存在于肌红蛋白、细胞色素及细胞内氧化还原酶。
Iron is an essential element of the body’s physiological processes, it is one of the main raw materials of hemoglobin. Iron deficiency anemia tends to occur in adolescents and pregnant women, especially in infants and young children, if they are not adequately taken up or absorbed. Healthy adults with a total iron content of 3 to 5 grams of total body iron content of about 66.5% of hemoglobin, 30% of iron storage. 4% is tissue iron present in myoglobin, cytochromes and intracellular oxidoreductases.