Weight lost by dieting is often regained due to the activity of a protein in the brain.
Dieting might become effective now that fat burning is better understood

The end of yo-yo dieting might be in sight now that researchers have discovered a protein in the brain that acts as a switch to control fat burning. This protein ensures that the body stores more energy after a period of food shortage. By manipulating this protein, researchers might one day be able to fool the brain enough so that we won’t regain the weight lost by dieting.

Read the full story: Monash University
Scientific publication: Cell Reports