Well it kind of depends on what you think is driving the problem,

这取决于你对产生这个问题的原因的理解
and each of these things suggest a different level,

不同的理解决定着你可以采取的
different types of things you might do.

行动的层次和方式
For example,

举例来说
if it's more convenient should you change the environment to make the

如果是因为方便那你改变外部环境
unhealthy food less convenient and make healthy foods more convenient?

会使得健康食品比垃圾食品更容易获得吗
That would make sense.

那样可能奏效
But if this is the reason,

但是如果原因是
it's what people like to eat,

垃圾食品合乎人们的胃口
what would you do about that?

你应该怎么做呢
Should we create a drug that takes

我们能制造出一种药让人们
away the pleasure from some of these unhealthy foods?

在吃这些垃圾食品时候的愉悦感消失吗