Some people can lose more than 2 pounds in a week with a dedicated fitness program and serious dietary restrictions.The time and effort required to lose weight that quickly is grueling and usually unsustainable, though. Even if you can lose a notable amount of weight in a week, a lot of it will be water weight -- not true belly fat. Weight you lose quickly is likely to be regained quickly too.
Which means, sadly, the more glasses of rose and chocolate-coated pretzels you eat, the longer it will take to reach your flatter belly goals. “When you digest large amounts of calories, your body allocates some of these to functional systems which work to keep you alive (think the brain, muscles and organs),” says Belalij. “It also uses it to fill up energy stores. Any excess is then stored in fat cells around the body – typically being those of the belly.”