[KongchangAI]
Unverified90% confidenceDecision RuleTime unknown

成人每日维生素A可耐受最高摄入量(UL)为3000μg RAE(约10000IU视黄醇当量),长期日补超过此值有肝毒性和骨质疏松风险;日常补充剂单粒选择2500-5000IU视黄醇更安全

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Long-term
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