Unverified85% confidenceDecision RuleTime unknown
单次补钙量超过500mg元素钙时吸收率显著下降，应分2-3次服用而非一次大剂量，故日需补充量大时选择低单片剂量分服更划算
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Unverified钙剂应分次小剂量服用，单次元素钙超过500mg吸收率明显下降，每日需求量分早晚两次效果更佳97% similarUnverified单次补钙元素钙不超过500mg吸收最佳，超过部分吸收率下降；每日需求量大时应分次服用而非一次大剂量95% similarUnverified单次补钙元素钙不宜超过500mg，超过后吸收率明显下降，需补充大剂量者应分次服用而非选高单片含量产品95% similarUnverified单次补钙元素钙量应控制在≤500mg，超过该量吸收率急剧下降；每日需求较高时应分2-3次服用而非一次大剂量95% similarUnverified单片钙含量不宜超过500mg元素钙，因人体单次钙吸收率随剂量上升而下降，超过500mg吸收效率显著降低，高剂量需求应分次服用95% similar
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