She also says that cutting certain foods and drinks out of your diet point-blank, like soda, can be difficult. "While I’m no fan of sodas — they’ve have been linked to weight gain, and have no nutritional value — banning them without offering a substitute might backfire because people feel deprived. Deprivation can lead to rebellion and giving up on weight loss." Sticking to the meal plan is the hard part — but if you can do, you will lose a couple of pounds, the professor says. "If you actually follow it... then yes, you’ll certainly lose weight. You’re not going to lose 10 pounds of 'real weight' in 3 days though. If you lose 10 pounds, then most of it is water weight."