Now that's okay as long as you understand what's going on and it's reasonable for your health.

只要人们知道自己的饮食习惯,及这么做对健康是有益的,那就没问题

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

But again, that's the healthy diet. That's not the junk food diet.

但是话说回来，这是健康的饮食习惯，而不是垃圾的饮食习惯。

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Let's say, just say that you're wanting to change your own diet to improve your health.

比如说,你想改变自己的饮食习惯,使自己更健康

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

But overall, you want to make sure you have a healthy diet.

但整体上，你要确保你有一个健康的饮食习惯。

关于网络世界 - SpeakingMax英语口语达人