Unverified85% confidenceTradeoffTime unknown

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

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85%

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维生素D补充剂category

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Unverified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89% similar Unverified剂量越高越省事但过量风险越大：长期>4000IU/天可能导致高钙血症、肾结石。无检测报告时不宜盲目常年服用5000IU，日常维持1000-2000IU安全窗口更宽87% similar Unverified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85% similar

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