Unverified85% confidenceDecision RuleTime unknown
含铁的复合维生素与含钙产品不宜同服,钙铁竞争吸收,若两者都需补充应间隔2小时以上;日常复合维生素铁含量控制在≤10mg避免便秘
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85%
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Long-term
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Unverified同时含维生素C的铁剂或搭配200mg维C服用可提升非血红素铁吸收率2-3倍,但含钙的复合营养素会抑制铁吸收,铁剂与钙片应间隔2小时以上服用90% similarUnverified含维生素C(≥50mg)的复合补铁产品可将非血红素铁吸收率提升3-6倍;同时应避免与钙剂(≥300mg)在同一时间服用,钙会竞争性抑制铁吸收,两者建议间隔2小时以上89% similarUnverified钙剂、牛奶、浓茶、咖啡、全麦(植酸)会显著抑制铁吸收,铁剂应与这些间隔2小时以上服用。选购复合维生素时注意钙铁不宜同时高剂量存在于一片中86% similarUnverified钙剂会干扰铁的吸收,经期女性若同时补铁改善贫血,应将钙剂与铁剂间隔至少2小时服用,不宜同服85% similarUnverified警惕铁与钙的吸收竞争:含铁复合维生素不宜与钙剂或牛奶同服,间隔2小时以上;含铁产品对无缺铁诊断的儿童反而增加胃肠负担,选复合维生素时优先选不含铁的常规配方85% similar
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