婴幼儿中缺铁性贫血的发病率可高达20～40%,父母很容易想到让孩子多吃些菠菜、蛋黄等以补铁。其实,菠菜与蛋黄并非婴幼儿的补血佳品。蛋黄中的含铁量的确不少。每只蛋黄约含2毫克的铁,但铁与含磷的有机物紧密结合。肠胃道中的吸收率较低,仅3%。而猪肝、动物血(如鸡血、鸭血、猪血)不仅含铁量高,而且吸收率可达20%以上。菠菜中的含铁量不高(每100克仅含2.0毫克),远 The incidence of iron deficiency anemia in infants and young children can be as high as 20 to 40%, parents can easily think of children to eat more spinach, egg yolk and so on to iron. In fact, spinach and egg yolk is not a baby’s blood to share. The amount of iron in the yolk indeed a lot. Each egg yolk contains about 2 milligrams of iron, but iron is tightly bound to phosphorus-containing organisms. Absorption in the gastrointestinal tract is low, only 3%. The liver, animal blood (such as chicken blood, duck blood, pig blood) not only high iron content, and the absorption rate of up to 20%. Spinach in the iron content is not high (only 2.0 mg per 100 grams), far