来自《耶鲁大学开放课程：有关食物的心理学、生物学和政治学 第3集 第3集》

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  and so day-to-day fluctuations become less of a problem
  这样一来 相比起水溶性维生素
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  with fat soluble then water soluble vitamins,
  脂溶性维生素的浓度不会每天剧烈波动
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  because the body can go grab them from a storage depot, if you will.
  因为机体可以任意取用体内的储存
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  But then they can also be toxic if taken in too large of amounts
  但如果摄入过量也会中毒
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  because the body does store them.
  因为机体储存的脂溶性维生素也会过量
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  The water soluble vitamins tend to be used more immediately by the body
  而水溶性维生素往往都立刻被身体所利用
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  not stored and excreted through the urine if consumed in excess,
  不会被机体储藏 过剩部分由尿液排出
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  so the body can tolerate more variation in intake of these
  因此机体耐受过量水溶性维生素的能力
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  before you start getting toxicity than
  相比起右边这栏里的脂溶性维生素
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  is the case with the vitamins on the right.
  可是要强得多了
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  But they're all important for health in one reason or another.
  但它们对健康都是有重要意义的
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  And again, we could spend a lot of class time saying,
  我们可以花很多课堂时间来说