Diet derailers are everywhere -- in your house, in the grocery store, at work, at play, in your head even. Here, we'll address the very things that throw us off course. Together, we'll learn how to avoid our diet traps -- and how to get back on track when we can't.

The list of diet derailers goes on. and on. and on. It never stops, really, because what destroys one diet might be very different from what tanks another. There just might be as many diet crushers as there are people living on this planet. I mean, look at all the culprits we covered in 2008. And already in 2009, we've talked resolutions, fast food and weekends -- each one ripe for wrecking a good diet.

Forget everyone on the planet for now. Let's talk celebrities (they're way more fun) and what derails their diets. Because believe it or not, stars splurge too (not very often from the looks of most of them) and I, for one, am curious about what sinful favorites might morph their famous physiques into famous fat. Check out the gallery below, because People magazine has the scoop.
If your diet is on the path of destruction and you're dying to get it back on track, check out America Takes It Off by clicking on the badge below.