营养性贫血是全球性营养缺乏病,是发展中国家的主要卫生问题之一。在营养性贫血中,主要为缺铁性贫血(IDA),其次是缺乏叶酸,由缺乏维生素B_(12)、蛋白质引起的贫血较少见。只知道食物或膳食中铁的含量是不足以评价铁营养作用大小的。一个整体膳食中铁的吸收利用,不但取决于铁含量,更重要的是取决于膳食中已知或未知的促进或抑制铁吸收因素的强 Nutritional anemia is a global nutritional deficit that is one of the major health problems in developing countries. In nutritional anemia, mainly iron deficiency anemia (IDA), followed by the lack of folic acid, lack of vitamin B_ (12), protein anemia is less common. Only know the food or dietary iron content is not enough to evaluate the role of iron nutrition. The absorption and utilization of iron in a whole diet depends not only on the iron content but more importantly on the known or unknown factors in the diet that promote or inhibit the absorption of iron