It all depends on how long and how strict you have been carb depleating dude. If you have kept your carbs really low, and been really strict with your diet, you may just find out that you actually look better and more vascular the next day. Just remember that is only when you've been STRICTLY dieting long and hard!!!!! If that isn't the case, and of course depending on how much you "pigged out" it will usually take a day or two at most for all that crap to "clear" your system. I used to allow myself a cheat day during hard dieting, but don't do that anymore, as I found that one cheat day would lead to another down the road. Everone is different, however, so ya have to do what's best for you. O.M.G.