[KongchangAI]
Unverified90% confidenceDecision RuleTime unknown

预成型维生素A(视黄醇/棕榈酸视黄酯)成人每日安全上限为3000μg RAE(10000IU),长期超过此量有肝毒性和骨密度下降风险;日常补充剂选每粒≤1500μg(5000IU)更安全

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90%
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Long-term
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