I've read the book and have been experimenting for a couple of months with food. Sugar is definitely a big no-no, gives me something between mild optic nerve pain to a raging migraine almost immediately. I don't think of myself as a bread eater, but since I'm staying off bread completely I'm finding that I miss it and end up eating something I shouldn't, then my legs go numb. I have gone to a site that sells gluten-free flours, but their focus is just the gluten. They also sell arrowroot starch and some other starches, an egg replacer, guar gum . . . Is the guar gum okay, or does it come under the legume category? It's kind of hard getting started on this diet. Once I know what I can and can't use and get the right ingredients in the cupboards I hope to do better.