The difficult part is the burning the 2000 calories. You do not have complete control over how many calories you burn. In the example DrSprout gives, if your bo

The difficult part is the burning the 2000 calories. You do not have complete control over how many calories you burn. In the example DrSprout gives, if your body senses that you are burning too many calories it may adjust what is it does to conserve energy. In this case by delaying the process of healing the muscles. In short, the way to lose weight is by burning more calories then you consume. But the difficult part is finding out how to do so in a healthy and sustainable weight. The means for doing so will vary from individual to individual.