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家长一定要警惕儿童营养不良的4大信号

发布日期：2012-03-05 12:20:52编辑：admin

如今的家庭都只生育一个孩子，哪个父母不把孩子当成掌上明珠。可是往往很多父母，因为工作繁忙而忽略了孩子的饮食与营养问题，孩子是否营养均衡，是否有营养不良的现象呢？孩子营养状况滑坡往往是疾病出现之前就已有种种信号。父母若能及时发现这些信号，并采取相应措施，就可将营养不良扼制在萌芽状态之中。

警惕儿童营养不良的信号 人们通常把消瘦、发育迟缓乃至贫血等营养缺乏性疾病，作为判断孩子营养不良的指标。此法虽然可靠，但发展到了这步田地，孩子的健康已遭受到一定程度的损害，给人留下“亡羊补牢”之憾，显然不是上策。 最新研究表明，以下信号特别值得家长留心：

●过度肥胖

以往常将肥胖笼统地视为营养过剩，最新信息表明，营养过剩仅是部分“胖墩儿”“发福”的原因，另外一部分小胖子乃是起因于营养不良，具体说来就是因挑食，偏食等不良饮食习惯造成某些“微量营养素”摄入不足所致。 这些“微量营养素”主要指的是B6、B12、尼克酸等维生素以及锌、铁等矿物元素，它们在人体内的含量很少，但功效甚大，脂肪的正常代谢就离不开它们。如果这些“微量营养素”不足，体内的脂肪就无法代谢为热量而散失，只好积存于腹部和皮下，孩子自然腹大腰圆，体重超标，但实际上却存在营养不良。

●眼睛近视

说到近视，人们大多以为是孩子用眼习惯不良所致，却忽视了营养不良这一要素，因而防治效果不佳。 儿童时期是眼睛发育的关键阶段，钙和铬等不可缺乏 先说钙。它与眼球的形成有关，摄入不足可使巩膜单性减退、晶体内压力上升，眼球前后径拉长而导致近视。 再说铬。它乃是体内一种重要荷尔蒙———胰岛素的辅因子，如果缺乏则胰岛素活性减退，对糖代谢的调节能力下降，致使吃入的糖分不能正常代谢而潴留于血液中，迫使眼睛的屈光度改变，最终形成近视。 牛奶、蛋类、豆制品、贝类、动物肝、牛肉等食品钙、铬含量颇丰，应多给孩子安排。另外，加工过精的白米、细面可丧失80%的铬元素，故定期给孩子吃一点糙米，全麦面包等也大有益处。

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