Unverified85% confidenceDecision RuleTime unknown
复合维生素中铁元素以甘氨酸亚铁或富马酸亚铁等有机铁形式存在时,吸收率显著高于氧化铁等无机铁,胃肠刺激也更小,产后补铁应优先选择螯合铁配方,元素铁含量≥18mg/天可满足普通女性需求
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85%
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Long-term
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Unverified选购复合维生素时,铁元素形态优先选甘氨酸亚铁或富马酸亚铁(吸收率高、胃刺激小),避免硫酸亚铁(易致便秘、恶心);产后补血需求者铁含量应≥18mg/天92% similarUnverified复合营养素片中铁元素以甘氨酸亚铁或富马酸亚铁形式吸收率高于氧化铁,孕期女性选购需铁含量≥18mg且标注为有机螯合态90% similarUnverified补铁首选二价铁(亚铁形式如富马酸亚铁、甘氨酸亚铁),吸收率优于三价铁;同服维生素C可提升铁吸收2-3倍,避免与钙剂、牛奶、茶同服88% similarUnverified二价铁(亚铁)如硫酸亚铁、富马酸亚铁、甘氨酸亚铁的吸收率显著高于三价铁(如焦磷酸铁、多糖铁复合物),缺铁性贫血治疗首选二价铁,单次元素铁40-60mg即可87% similarUnverified月经量大者补铁应选二价铁(亚铁形式如甘氨酸亚铁、富马酸亚铁),元素铁18-27mg/天为宜;避开三价铁(吸收差)和超过45mg/天(易便秘、恶心)87% similar
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