Ew, Kim, I hope your daughter's nose can be fixed quickly! It's weird that doctors couldn't even tell that something was wrong... that's kinda, err, their job...
Deanne - It's not terribly hard, just a bit tricky to get used to regarding the foods to associate (or not). For instance, I can eat spaghetti with tomato sauce and broccoli, but not spaghetti with cheese. More generally, it recommends to eat non-processed foods, whole grains... stuff that is anyway good, whether we want to lose weight or simply stay in good health. The only problem that can really stem from it in my opinion is that, as the author says that there's no need to bother about quantities, some people may understand "we can eat cheese at will as long as it's not mixed with carbs, etc", and go into overeating/unbalanced meals. I guess it's a matter of logics at this point, haha. If being sensible about it, I think it can indeed easily be followed for life.
As for what I can't eat, it's a matter of glycemic index first, but there are things that are really "forbidden" for their extremely high GI, for instance potatoes and beer, or any kind of "junk food" (which allies fats + carbs, and generally that's refined carbs too). I recently got an updated version of the author's book, where he says that on the "maintenance" phase, one could allow themselves such foods IF balancing them with very low-GI foods, but he lost me at this point, it's really a pain to calculate whether the global GI of a meal was too high or too low then
