存在“过剩”问题的只有两种维生素：A和D.通常也只在你吃了很多鳕鱼肝脏后继续服用维生素片剂才会发生。在其他情况下，“多余”的维生素都会随尿液排出体外。尿液是指示剂，当维生素过剩时，它的颜色会变得鲜艳。
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