Unverified88% confidenceDecision RuleTime unknown
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5000IU
1
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88%
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Long-term
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Unverified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95% 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95% similarUnverified维持性补充选1000-2000IU/天可覆盖多数成人日常需求；缺乏纠正（血清25-OH-D＜20ng/ml）阶段需4000-5000IU/天并在8-12周后复查，达标后降至维持量94% similarUnverified日常维持性补充选1000-2000IU/天即可满足绝大多数成人需求；5000IU属于纠正性剂量，仅在检测确认缺乏（血清25(OH)D＜20ng/ml）时短期使用，不宜长期无脑吃94% similarUnverified日常维持型补充选1000-2000IU/天即可；仅在检测出明显缺乏（血清25(OH)D<20ng/ml）且遵医嘱时才短期使用5000IU大剂量94% similar
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