Unverified87% confidenceDecision RuleTime unknown
育龄期与孕期女性应选含铁18mg左右且含叶酸400-800mcg的配方，孕期版还需含DHA或额外补充
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Unverified育龄期及孕期女性配方需含铁18mg以上、叶酸400μg以上，备孕应提前3个月补充叶酸而非孕后才开始92% similarUnverified孕妇应选择明确标注孕期适用、元素铁27-30mg且常与叶酸复配的产品，不要自行叠加高剂量普通补铁剂（>45mg/日易加重孕期便秘并有过量风险）91% similarUnverified孕期及备孕补铁应选标注「孕妇适用」且经医生指导的产品，孕中晚期需求量增至每日约27mg元素铁，复合叶酸铁剂更适合孕妇一站式补充88% similarUnverified孕妇补铁应选择专为孕期设计、明确标注孕妇适用的产品，剂量通常需元素铁27-30mg/天，且优选低便秘配方（如螯合铁+缓释），避免复合维生素中钙铁同片影响吸收88% similarUnverified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88% similar
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