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1集 第1集》
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Salt is a good guess, but that's not the answer.高盐是个猜测不错 但还不是正确答案 -
Diversity.多样性 -
Okay, very good variety is the right answer.好的 很好 正确答案是多样性 -
Most people wouldn't think this.但大部分人不会想到这一点 -
But why would a laboratory animal,但是为什么实验动物会喜欢这些食物呢 -
unaffected by--never having given access to foods like this,毕竟它们从未接触过这类食物 -
not being exposed to marketing或从未像人类一样接受过市场营销 -
or other social influences that humans are,和其他社会因素的影响 -
why would a lab animal seek out a diet,为什么实验动物会选择这样的饮食 -
become very overweight,然后体重严重超重 -
become nutritionally deficient in some things同时又缺少某些营养呢 -
because it's not eating the healthy food是因为它们不吃健康食品