Unverified85% confidenceTradeoffTime unknown
补铁剂型选择：二价铁（亚铁，如富马酸亚铁、甘氨酸亚铁）吸收率高但易致胃肠刺激和便秘；三价铁（多糖铁复合物）刺激小、口感好但吸收较慢，婴幼儿优先甘氨酸亚铁或多糖铁
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85%
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Long-term
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Unverified补铁选二价铁（如富马酸亚铁、甘氨酸亚铁/螯合铁）吸收率优于三价铁；甘氨酸亚铁胃肠刺激小、便秘黑便少，适合婴幼儿和哺乳期，是刺激敏感人群首选94% similarUnverified二价铁（亚铁）吸收率显著高于三价铁，但对肠胃刺激也更强；肠胃敏感或呕吐明显的宝宝可选多糖铁复合物（三价铁）或双甘氨酸螯合铁，刺激性小但需接受吸收率略低92% similarUnverified给儿童选富铁食品时，铁形态优先选择焦磷酸铁、甘氨酸亚铁等有机螯合铁，对肠胃刺激小、无金属腥味；避免选择硫酸亚铁强化的产品，虽吸收率高但易引起便秘、恶心且铁腥味重适口性差88% similarUnverified二价铁（亚铁）吸收率高但刺激胃肠道，三价铁（如多糖铁复合物、铁蛋白）胃肠道耐受性好但吸收较慢；胃肠敏感或既往吃亚铁盐恶心呕吐者优先选三价铁或多糖铁复合物88% similarUnverified补铁液态产品选择二价铁（亚铁形式如甘氨酸亚铁、富马酸亚铁）吸收率显著高于三价铁，甘氨酸亚铁螯合形式对胃肠刺激小、便秘和黑便副作用较轻，适合孕妇和肠胃敏感者87% similar
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