Unverified88% confidenceDecision RuleTime unknown
选择含维生素D3的复合矿物质更优，D3促进钙吸收，孕期D建议400-800IU；同时含维生素C的配方可将非血红素铁吸收率提升2-3倍，钙铁分包+对应协同维生素的设计优于单纯堆料
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88%
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Long-term
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Unverified选择含维生素D3的复合钙片，D3能显著提升钙吸收率，孕期每日D3建议400-800IU；若钙片不含D3需另行单独补充92% similarUnverified含维生素D3的钙片优于纯钙片，D3促进钙吸收，选择每片含维生素D3 200-400IU的产品更利于钙利用90% similarUnverified选择含维生素D3的钙片，D3促进肠道钙吸收，孕期建议D3含量400-600IU/日；若已单独补充复合维生素含D3，需避免叠加超过4000IU上限90% similarUnverified优先选择含维生素D3的复合钙片，D3促进肠道钙吸收，孕期每日D3推荐量约400-800IU；单纯补钙不补D3时钙吸收利用率明显偏低89% similarUnverified维生素D3能显著促进钙的肠道吸收，选含D3的复合钙片可减少额外补D的负担，D3添加量在400-800IU较为常见且适合孕期协同89% similar
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