Unverified90% confidenceDecision RuleTime unknown
成人维生素A每日安全摄入上限为3000微克RAE(视黄醇当量),选购时单份饮品维A含量应控制在800微克RAE以内,避免叠加日常膳食后超标
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Unverified维生素A剂量需卡阈值:1-3岁每日安全上限为600μg RAE(视黄醇当量),选购时VA+β-胡萝卜素累计不应超此值,脂溶性维生素(A/D/E/K)过量会蓄积中毒82% similarUnverified每粒200μg已接近成人硒的每日安全上限(400μg/天),日常膳食中已有一定硒摄入,长期服用需注意不要与其他含硒复合维生素叠加,避免超量82% similarUnverified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82% similarUnverified成人维生素A每日补充上限(UL)为3000μg RAE(约10000 IU),选购单独补充剂时优先选择每粒≤2500μg RAE(≤8000 IU)的产品,避免叠加膳食摄入后超量81% similarUnverified选购前应核对维生素A的每份含量是否在对应年龄段的中国RNI推荐量范围内,避免长期过量;3-6岁儿童维A推荐摄入量约为310微克RAE/天,可耐受最高摄入量约为600微克RAE/天81% similar
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