Getting in swimsuit shape for your next vacation? Sadly, we have some bad news: A recent U.K. study found that 6 out of 10 travelers gain weight during two-week vacations, and they typically put on a frightening five to seven pounds during their time away. (Talk about excess baggage.)

But here's the good news: Vacation bingeing doesn't have to bring you down. We interviewed licensed nutritionist Monica Reinagel for her top tips on staying fit and eating right while away, whether you're on an island, in a city, or on top of a mountain. Here's the skinny on how to come home looking as svelte as the day you left.