Unverified85% confidenceDecision RuleTime unknown

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

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85%

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Long-term

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孕期钙片category

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Unverified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96% similar 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95% similar Unverified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94% similar

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