目前,营养性缺铁在发达国家中仍然普遍存在,在发展中国家更为严重和突出。食品中强化铁是在人群中预防缺铁性贫血的有效方法。据化学形式可将膳食铁分为血红素铁和非血红素铁,前者在机体中的吸收机制与后者不同,而且膳食成分对其吸收影响较小。动物血富含血红素铁,是良好的膳食铁资源。过去动物血的排放成为环境的污染源,现在人们越来越重视对动物血资源的开发和利用,对动物血铁的营养价值及其在预防缺铁性贫血方面的作用做了大量的研究。现将有关研究作 Currently, nutritional iron deficiency is still widespread in developed countries and more serious and prominent in developing countries. Intensive iron in food is an effective method of preventing iron deficiency anemia in the population. According to the chemical form of dietary iron can be divided into heme iron and non-heme iron, the former absorption mechanism in the body with the latter is different, and the dietary composition of its absorption less affected. Animal blood is rich in heme iron, which is a good dietary iron resource. In the past, the discharge of animal blood became the source of environmental pollution. Nowadays, people pay more and more attention to the development and utilization of animal blood resources, and have done a great deal of research on the nutritional value of animal blood iron and its role in preventing iron deficiency anemia. Now about the research