Unverified88% confidenceDecision RuleTime unknown

孕妇若考虑使用，需注意叶酸剂量是否与已服用的孕期复合维生素重叠，避免叶酸总摄入超过1000μg/天的安全上限

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Unverified备孕及孕期女性应选孕妇专用配方（含叶酸≥400μg、DHA、碘），普通综合维生素叶酸不足且可能含视黄醇形式维生素A（过量致畸风险）87% similar Unverified备孕/孕期女性选综合维生素应确保碘含量150-220μg/天且含维生素D≥400IU、DHA优先，孕期碘需求上升但仍不宜超500μg；甲状腺异常孕妇需先做甲功评估再选碘剂量85% similar

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