7 Lunchtime Habits That Make You Gain Weight
Why it packs on pounds: "We tend to match the people we eat with, in terms of how fast and how much we eat," says Melton. "And you probably don't want to be eating the same portion size as your male co-worker."
The fix: Not to sound antisocial, but try to dine solo more often than not. If you've got lunch dates scheduled, be mindful of how fast you're eating, and remember that just because one of your fellow diners is a card-carrying member of the clean-plate club doesn't mean you have to be, too.