Unverified86% confidenceTradeoffTime unknown
剂量越高见效越快但脂溶性维生素会在体内蓄积，长期超5000IU/天且不监测血药浓度有中毒（高钙血症）风险；日常维持低剂量更安全，高剂量应短期且复检
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86%
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Long-term
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Unverified剂量越高纠正缺乏越快，但过量风险也上升：长期＞4000IU/天且不监测血清水平可能导致高钙血症，高剂量应作为短期纠正手段而非终身习惯85% similarUnverified剂量越高见效越快但过量风险越大：长期超4000IU/日可能致高钙血症，选高剂量（5000IU）时应有检测支持而非默认长期服用85% similarUnverified剂量越高单价越省但过量风险越大：5000IU比1000IU单粒更划算，但维生素D中毒（高钙血症）多因长期超4000IU且未监测导致，日常选择应以安全边际优先而非单价82% similarUnverified剂量越高纠正缺乏越快，但也越易过量且更依赖血清监测；不做检测的日常保健选1000-2000IU比盲目吃5000IU更安全，高剂量应作为短期纠正而非长期习惯81% similar
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