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2集 第2集》

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  how many products you touch in a given day
  一天之内你接触到的产品
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  have been derived in some way from corn.
  有多少是由玉米加工而来的
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  It's really quite amazing.
  这真的很神奇
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  That would not necessarily be true in other parts of the world
  在其他地方 情况不一定这样
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  but it is true in this part of the world.
  但是在美国 事实就是这如此
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  Now the fact that people were so reliant on certain foods
  人们过于依赖某些特定的食物
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  led to deficiencies of certain nutrients,
  导致了某些营养元素的匮乏
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  so people that were dependent on a rice based diet
  因此 以米饭为主食的人
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  tended to have problems with deficiencies in protein,
  很可能缺少蛋白质
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  Vitamin A, and thiamine.
  维生素A和维生素B1
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  Now I'm not-- again,
  现在 我不是
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  this is the kind of detail I'm not expecting you to remember,
  我并不希望你们能记住这些细节