Ok, I haven't read the book or anything
so this is more just my .02 worth. Take it or leave it lol
While you probably wouldn't be able to make certain desserts a regular part of your diet, I think that after a while, when you've been on the diet for a longer period of time, it would be ok to *every once in a while* have something off-plan. You'd probably want to wait to do this until the diet really has become a new lifestyle for you, because otherwise..well..don't know about you all but I would be too tempted to go back to the way things used to be. I'd have to wait till the diet became more second nature, kwim?