When consumed in excess, some water-soluble vitamins like B and C are excreted in the urine. But fat soluble-vitamins – including A, D, E and K – accumulate in tissues, posing potential risks.

过量摄入后，有些水溶性维生素，比如维生素B和C，会随尿液排出。但是脂溶性维生素，包括维生素A、D、E和K，会积聚在组织里，带来潜在风险。

“These fat soluble vitamins are very stable,” she said. “They’re not released in the urine. If you are over-consuming them, you can raise your levels gradually over time and get into trouble with liver function. You have to be very careful with them.”

“这些脂溶性维生素非常稳定，”她说，“它们不会随尿液排出。如果过量摄入，它们在体内的含量会越来越高，导致肝功能失常。你必须对它们格外小心。”

Data from clinical trials have highlighted clear risks from excess. A large study published in JAMA in 2009, for example, looked at clinical trial data on more than 6,000 heart disease patients who were treated daily with either B vitamins or placebo over a seven year period. The study found that those who were given folic acid and B12 had higher mortality and cancer rates.

临床试验数据突显出过量服用的风险。例如，2009年发表在《美国医学会杂志》上的一项大型研究分析了6000多名心脏病患者的临床试验数据，这些病人在七年时间里每天服用B族维生素或安慰剂。结果发现，服用叶酸和B12的研究对象死亡率和患癌比率更高。

【维他命饮料 究竟是好是坏】相关文章：

★ BBC推荐：第72届戛纳电影节必看影片

★ 读书好还是听书好?这是个问题

★ 女生如何鉴定男友是否是花花公子

★ 5G网络或干扰气象卫星工作

★ 韦氏词典新增640个新词 来看看你认识几个

★ BEC商务英语初级写作必备黄金句(1)

★ 台湾全面查处塑化剂饮料 波及产品面积扩大

★ Gucci推出迪士尼合作款包包，画风不忍直视

★ 一等就是18年：《千与千寻》国内上映 海报又亮了

★ 进屋前要脱鞋吗？听听科学研究怎么说