铁是人体必需的微量元素之一,虽然人体需要量不多,但缺乏可影响身心健康。一般人只知道铁是造血原料,缺铁可引起贫血,其实铁的生理功能远非只是造血,它还参与肌红蛋白、细胞色素的合成,参与多种含铁酶组成,缺铁除引起贫血外还可影响多方面的功能。由于影响肌肉,可出现异常疲乏、懒散,不爱活动,对什么事都不感兴趣。缺铁可以影响上皮组织,头发干枯发黄、失去光泽、易断裂;指甲变脆、 Iron is one of the essential trace elements of the human body, although the human body needs a small amount, but the lack of can affect physical and mental health. Most people only know that iron is a hematopoietic raw material, iron deficiency can cause anemia, in fact, the physiological function of iron is far from just hematopoietic, it is also involved in myoglobin, cytochrome synthesis, involved in a variety of iron-containing enzymes, iron deficiency in addition to causing anemia It can also affect a wide range of functions. Because of the impact of muscle, there may be abnormal tired, lazy, do not love activities, are not interested in anything. Iron deficiency can affect epithelial tissue, hair dry yellow, tarnished, easy to break; nails brittle,