幼儿不宜多吃菠菜

文章来源：百益康发布时间：2016-07-31浏览次数：633

中医研究认为菠菜味甘，性凉，有健脾和胃，润肠通便，解酒止渴等功效。每100克菠菜中含有胡萝卜素2920毫克，是蕃茄的5-6倍，是花菜和茭白的近百倍，故可用来治疗夜盲症。

但尽管如此，幼儿却不宜多吃菠菜。因为菠菜中含有大量的草酸，草酸容易和食物中的钙、铁、锌等矿物质结合成不溶于水的草酸盐，从而阻碍了这些元素的吸收，也有人以为菠菜含铁量很高，是补铁佳品，其实这是一种误解，因为菠菜中铁的含量并不高，每100克只含2.9毫克的铁，远低于苜蓿9.7 毫克，也低于苋菜和荠菜的5.4毫克。而且由于大量草酸的存在，菠菜中铁的吸收率仅1%左右，其余99%的铁都被排出体外，一般的食物铁的吸收率为3%-5%，豆类为7%，鱼类11%，肝脏、瘦肉、和动物血是血红素铁为主，吸收率可高达22%。

缺钙则会出现烦躁、多汗、夜惊、方头、鸡胸、罗圈腿等佝偻病的症状，少数人还可能会发生手足搐搦等，因此幼儿多吃菠菜，益处不多，害处却不少。

由于草酸容易溶解在水中，因此炒菠菜以前最好先在沸水中焯一下，这样便可使大部分的草酸溶解在水中，从而提高其中钙、铁、锌的吸收率。

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基本文件流程错误 SQL 调试

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