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孕妇维生素a多少
更新时间: 2020-11-04 00:00:00  

孕妇维生素a需求量为900-1000微克。如果维生素A的摄入量不足900微克,就可能导致胎儿的眼部发育缺陷,甚至可能导致胎儿畸形。但是如果过量摄入维生素A,大于了1000毫克,就可能造成中毒的发生。因此孕妇在摄入维生素A的时候,应该注意正常范围,否则过量补充易中毒。

关键词: 孕妇 维生素 多少

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