虽然没有确切的证据表明我们应该吃什么，什么时候吃，但人们的共识是，我们应该听从自己的身体，饿的时候再吃。

While there's no conclusive evidence on exactly what we should be eating and when, the consensus is that we should listen to our own bodies and eat when we're hungry.

youdao

这真的是一个有效的方法，能用以确定我们应该吃什么或什么癌症治疗方法最有效吗？

Is that really an effective way to determine what we should eat or what cancer treatments will work?

youdao

我并没有说我们应该吃什么和不吃什么，我说的是如果你吃完午饭后还会补充吃些其它东西的话，那么你的午饭就要减少一半。

I'm not even going to say what to eat and not eat. I'm just saying if you are having that sub at lunch cut it in half.

youdao

When we talk about what to eat, how do we get advice on this and where do we look?

当我们讨论到我们该吃些什么的时候,我们应该从哪儿以及如何获得参考建议呢

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选