Unverified85% confidenceDecision RuleTime unknown
补钙的吸收关键是维生素D而非钙剂量本身，选购时优先看是否含维生素D3或搭配补充D3（400IU/天），单纯补钙不补D吸收效率大打折扣
1
Sources
85%
Confidence
Long-term
Relevance
-
First Seen
Sources
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Related Claims
Unverified选购钙剂优先看是否含维生素D3（而非D2），D3每片含量400-800IU可显著提升钙吸收率约30-40%；缺D3的纯钙剂吸收效率大打折扣94% similarUnverified选择含维生素D3的复合钙剂优先，D3每100-400IU可显著提升钙吸收率，单纯补钙不含D3时钙吸收利用率大幅下降93% similarUnverified维生素D3是钙吸收的必需辅助因子，无D3协同时钙吸收率仅10-15%；选择每片含D3≥400IU的复合配方比单纯钙片更有效92% similarUnverified选购时看维生素D3含量而非仅看钙含量：D3每日400-800IU可提升钙吸收30-40%，无D3的纯钙产品实际利用率偏低92% similarUnverified钙强化产品需选择添加维生素D3的款式（≥0.75μg/100ml），维生素D促进钙吸收，缺乏时补钙效果大打折扣；部分产品仅强化钙而无维D，实际吸收率低92% similar
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