When it comes to maintaining weight loss Dr Michael Mosley revealed eating more food can actually keep weight off.
Restrictive diets have been considered a quick-fix for those looking to lose a few pounds in a short space of time.
Regularly consuming fewer calories than the body needs can make it more difficult to maintain weight loss as people are more likely to binge due to hunger and cravings
He claims the diet plan has been "phenomenally successful" with followers as it promotes rapid weight loss.
The first phase advises people to follow a daily 800-calorie eating plan for a minimum of two weeks and no more than 12 weeks