[KongchangAI]
Unverified85% confidenceDecision RuleTime unknown

生物素成人每日安全上限无明确毒性阈值,但改善头发指甲的临床研究多集用2500-5000mcg(2.5-5mg)剂量,普通膳食补充选1000-2500mcg即足够,日常营养均衡者无需5000mcg以上超高剂量

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