Unverified80% confidenceTradeoffTime unknown
剂量越高单位成本越低但安全窗口越窄：400IU以下每日安全性高，追求800IU以上性价比虽好却增加出血和潜在风险
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80%
Confidence
Long-term
Relevance
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Unverified长期每日超过400IU（尤其800IU以上）不建议，高剂量维E可能增加出血风险，多项研究显示对健康人群无额外获益反而可能有害82% similarUnverified剂量越高见效快但过量风险大vs剂量常规更安全——除医生诊断缺乏外，普通预防补充坚持400IU即可，切勿自行加量80% similarUnverified剂量越高单价越低但灵活性越差：5000IU/10000IU大剂量适合明确缺乏（血清<20ng/ml）的短期纠正，而1000-2000IU更适合日常维持和灵活调整78% similarUnverified高剂量维E吸收更充分但过量风险和药物相互作用也上升；低剂量更安全但可能达不到治疗性目标，普通人群应在安全区间（≤200IU）优先78% similarUnverified剂量越高单次省事但过量风险与个体差异越大；小剂量（1000IU）每日服用更利于稳态维持，适合长期无检测的保守补充策略78% similar
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