The doctor suggested I record my eating habits.

医生建议我记录下来我的饮食习惯。

The doctor suggested I take a look at my eating habits.

医生建议我看一看我的饮食习惯。

The doctor advised me to keep a record of my eating habits.

医生建议我保持记录我的饮食习惯。

Won't it be hard to change my eating habits?

改变吃的习惯会不会很难呢？

One of the most rewarding has been around my eating habits.

其中最有意义的一个是一直围绕我的饮食习惯。

A couple of years ago, I started changing my eating habits and began implementing workout sessions 4–6 times a week.

几年前，我就开始改变自己的饮食习惯，每周锻炼4-6次。