You don't need us to tell you that those free office donuts and weekly birthday celebrations are bad news for your diet (seriously, how can there be so many birthdays?!). But those aren't the only work hazards stalling your weight loss progress: There's no shortage of seemingly innocent on-the-job habits that can make you take in more kilojoules than you need. And we're betting at least a few of these sound uncomfortably familiar.

Here are 7 workday mistakes that aren't doing your suit size any favours—and how to get back to a place you feel good about.  

© prevention.com