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20集 第20集》

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  However, then there was a concern that
  然而 当时有人担心
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  there were very inconsistent state standards,
  各州的标准会差异很大
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  so in some states the school lunch had no competition,
  因此某些州学校午餐没有任何竞争对手
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  in other states there was a lot of competition.
  而在其他州这类食物却泛滥成灾
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  So in the late 1970s, the USDA got their authority back.
  上世纪七十年代末 农业部收回决定权
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  They introduced this concept of foods of minimal nutritional value,
  他们引入了食品最低营养价值这一概念
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  which is a term that you hear a lot
  如果你真的对学校午餐有所了解
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  when you start really getting into the trenches with the school lunch.
  对这一概念定是耳熟能详了
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  These are foods that are defined because they contribute less than 5% of
  即那些某些重要的营养成分含量
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  the recommended daily allowance of certain important nutrients,
  低于推荐日常摄入量5%的食品
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  and they fall into four categories.
  可分为四类
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  They fall into candy,soda/water, frozen desserts, and chewing gum.
  即糖果 苏打水 冷冻甜食和口香糖