The food guide pyramid was the government's effort, put through by the U.S. Department of Agriculture about what people should eat optimally.

食物金字塔是政府努力的结果,它是由美国农业部提出的,关于人们最佳饮食结构的建议

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

Now you can come to your own conclusions about whether that makes sense and we'll go over different dietary approaches as we go through subsequent classes If you compare ancient humans to what modern people eat, let's look at different constituents of the diet.

关于它是否合理,你们可以自己下结论,接下来让我们会,看看不同的饮食指南,让我们对比下古人和今人的饮食,首先是饮食结构的不同

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

The person who does that best is Michael Pollan, and when you read his book, In Defense of Food, he spends some time in the book defining what food is and working through this--this quagmire of how do we define food and what's acceptable to eat, what's socially acceptable, what's personally acceptable.

这一点上迈克尔·伯伦做得最好,你们可以看看他写的书《为食物辩护》,他在书中给食物下了定义,并深入地探讨了这个难题,即如何区分食物与能吃的东西,社会普遍接受的东西,个人能够接受的东西

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选