Unverified85% confidenceDecision RuleTime unknown
孕期铁剂优先选低刺激的多糖铁复合物或甘氨酸亚铁，因孕期本就易便秘，硫酸亚铁会加重；孕中晚期每日需元素铁约30mg，需选择标注孕妇适用的医药级或经认证的营养补充剂
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Unverified孕期补铁建议选甘氨酸亚铁或多糖铁等温和剂型，妊娠期便秘常见，硫酸亚铁易加重便秘；孕中晚期需求增至每日27mg元素铁，应在医生指导下补充97% similarUnverified孕妇选铁剂优先选螯合铁或多糖铁复合物（羰基铁类），元素铁约30mg/天且刺激小、便秘轻，避免硫酸亚铁引发的孕期便秘加重；需与产检铁蛋白结果配合96% similarUnverified孕期补铁优先选择甘氨酸亚铁或多糖铁复合物，胃肠耐受好；孕中晚期每日推荐元素铁约30mg，需选标注孕妇适用且经认证的产品95% similarUnverified铁剂选甘氨酸亚铁(双甘氨酸螯合铁)或多糖铁复合物比硫酸亚铁便秘和胃刺激明显更轻，孕中晚期(孕13周后)需铁量增至每日27mg，孕早期无缺铁则不必强补94% similarUnverified孕妇补铁应选低刺激螯合铁或专用孕期铁剂，避免因便秘加重孕期不适，并优先选择叶酸+铁+VC复方产品，剂量遵医嘱（通常元素铁27-60mg/日）93% similar
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