Can Lemon Water Really Help You Lose Weight?

Celebs such as Gwyneth Paltrow and Real Housewives of New Jersey star Dina Manzo guzzle hot water with lemon as if the liquid was bottled at the Fountain of Youth itself. They're certain it aids in weight loss—but is the claim too good to be true?

"Hot water with lemon in and of itself does not cause any actual weight loss," says Alissa Rumsey, R.D., a spokesperson for the Academy of Nutrition and Dietetics. However, if this drink is replacing a beverage that is higher in calories, like coffee with sugar or fruit juice—and that results in a calorie deficit—then it can help you lose weight.