Doubling calorie intake leads to weight loss: Here's how.

Reverse dieting, a popular approach to weight loss, involves cycling between calorie deficit, calorie increase, and maintenance phases. While some claim it can speed up metabolism and burn fat, experts warn that there is little scientific proof behind it and it could ultimately hurt metabolism. Reverse dieters gradually increase their calorie intake, incorporating treats into their otherwise nutritious meals, until they reach the maintenance phase. Strength training is key, and dieters should remain in the maintenance phase for at least three months before beginning a new cycle.