Unverified88% confidenceDecision RuleTime unknown
无缺乏的健康成人日常维持推荐1000-2000IU/天；血清25-OH-D＜20ng/ml（缺乏）需在医生指导下短期用5000IU/天纠正，纠正后回落到维持量，不宜长期高剂量
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88%
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Long-term
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Unverified健康成年人日常维持选择D3 1000-2000IU/天即可满足需求；血清25-OH-D已明确缺乏（<20ng/mL）时可短期用5000IU/天纠正，纠正后降回维持量93% similarUnverified日常维持剂量1000-2000IU/天适合大多数成人；已确诊缺乏（血25(OH)D<20ng/ml）可短期用5000IU纠正，但5000IU不建议长期无监测服用93% similarUnverified维持性补充选1000-2000IU/日即可满足多数成年人需求；血清25-OH-D<20ng/ml的明确缺乏者可短期用5000IU/日纠正，纠正后降至维持量，不建议长期无监测服用5000IU92% similarUnverified成人日常维持推荐1000-2000IU/天；血清25(OH)D<20ng/ml的明确缺乏者可短期用5000IU纠正，但5000IU不建议无检测长期服用，成人长期安全上限约4000IU/天92% similarUnverified普通成人日常维持选择1000-2000IU/天即可；血清25-OH-D严重缺乏（<20ng/ml）时才需5000IU/天短期强化，且应在补充2-3个月后复查血清水平再调整剂量92% similar
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