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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  some of it goes into other kinds of products.
  另外的成为了其他产品
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  You have to make those calculations
  你必须把这些都算进去
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  and there are errors in that,
  因为其中存在误差
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  but you come away with a population
  但这样你会得出
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  estimate of things like that.
  整体人群摄取量的估算值
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  And then you can look at food disappearance data
  然后看看食物消耗的记录
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  and that's sort of a connection
  会与食物生产的数据
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  with the food production data:
  有某种联系
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  not so much how much is produced
  与其看在食品供应中生产了多少
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  but how much of it is disappearing from the--the food supply.
  倒不如关注被消费了多少
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  That is, how many hamburgers do we think are being eaten
  比如说 多少个汉堡包被吃了
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  and that's the food disappearing;
  那就是食物消费