铁是人和动物体所必需的微量元素之一，制造血红素、肌红蛋白和细胞色素都必须依赖铁。铁也是酶（过氧化氢酶）、非血红素铁（NHI）和硫蛋白（琥珀酸脱氢酶）的一个组分及其他酶的无机辅助因子。正常人体内铁的含量为35～60 mg/kg，其中 70%存在于血红蛋白，3%～5%存在于肌红蛋白，15%存在于铁贮藏蛋白-铁蛋白和血铁黄素。不同形态的铁在动物机体内的吸收转化效率也有所不同，硫酸亚铁价格便宜占有一定的优势，但易吸潮、口感差、吸收效率不高、易造成浪费及环境污染。甘氨酸铁（Iron glycine）、谷氨酸亚铁（Ferrous glutamate）、蛋氨酸亚铁（Ferrous methionine）、天门冬氨酸亚铁（Ferrous aspartate）等有机铁源因其生物学效价高、吸收率高和利于环保等优点正逐渐得到越来越多人的关注。

公司官网：www.wilincare.net欢迎选购！

Iron is one of the essential trace elements in human and animal body, and the production of heme, myoglobin and cytochrome must depend on iron. Iron is also a component of enzymes (catalase), non-heme iron (NHI) and thioproteins (succinate dehydrogenase) and an inorganic cofactor of other enzymes. The content of iron in normal human body is 35 ~ 60 mg/kg, of which 70% exists in hemoglobin, 3% ~ 5% exists in myoglobin, 15% exists in iron storage proteins - ferritin and hemosiderin. The absorption and conversion efficiency of different forms of iron in the animal body is also different, and ferrous sulfate is cheap and occupies a certain advantage, but it is easy to absorb moisture, poor taste, low absorption efficiency, easy to cause waste and environmental pollution. Organic iron sources such as iron glycine, ferrous glutamate, ferrous methionine and ferrous aspartate are getting more and more attention because of their advantages such as high biological potency, high absorption rate and beneficial to environmental protection.