The concept of the Reverse Taper Diets is still one of my favorite ideas.Without getting too technical, the concept was that you should be in your largest calorie deficit (eating the least amount of food) at the beginning of your diet, when you have the most fat to lose and thus the most fat available to be used as a fuel. Then, as you slowly lose fat you also slowly up your calories, ideally ending at a spot where you are eating maintenance level calories when you are at your leanest.The benefit of dieting in this manner is two fold: Firstly, you have much less risk of rebound weight gain. At the end of the diet, you would be eating exactly the amount you need to eat to maintain your new ideal body. Secondly, you would always have available energy so you could workout and so your energy levels didn’t diminish the further into the diet you lasted (lots of people complain about not having enough energy to workout by the end weeks of a traditional diet).The only problem that seems to come up with this approach is that people don’t like to fiddle with their calories, and they also have a very hard time increasing their calories if they’re seeing really good fat loss progress with the lower Calorie amounts.
Taken from:
Reverse Taper Intermittent Fasting | Brad Pilon's 'Eat Blog Eat'