Unverified85% confidenceDecision RuleTime unknown
铁剂优选二价亚铁(如乳酸亚铁、富马酸亚铁、甘氨酸亚铁),三价铁需还原为二价才能吸收,吸收率低;甘氨酸亚铁螯合形式对肠胃刺激最小
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Unverified铁剂优选二价铁(亚铁形式如甘氨酸亚铁、富马酸亚铁、硫酸亚铁),三价铁需还原后才能吸收、生物利用度低;甘氨酸亚铁螯合形式胃肠刺激最小96% similarUnverified三价铁(如多糖铁复合物、蛋白琥珀酸铁)胃肠刺激小但吸收率低于二价铁,需胃酸还原为二价才吸收,适合无法耐受亚铁但贫血不严重者93% similarUnverified补铁产品优先选择二价亚铁(如甘氨酸亚铁、富马酸亚铁、乳酸亚铁),其吸收率显著高于三价铁;其中甘氨酸亚铁(螯合铁)吸收率最高且对肠胃刺激最小,几乎不引起便秘和黑便93% similarUnverified补铁选二价铁(亚铁)而非三价铁:甘氨酸亚铁螯合物(如Ferrochel)胃肠刺激最小、吸收率高;硫酸亚铁最便宜但便秘/恶心副作用重。同服维C(≥100mg)可提升非血红素铁吸收2-3倍93% similarUnverified补铁选二价铁(亚铁:硫酸亚铁/富马酸亚铁/甘氨酸亚铁)而非三价铁,二价铁吸收率显著更高;甘氨酸亚铁(bisglycinate)胃肠刺激最小、便秘发生率低,适合不耐受传统铁剂人群93% similar
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