Hi! You might check out the book "Life Without Bread: How a Low Carbohydrate Diet can Save Your Life" by Christian B. Allan, Ph.D, and Wolfgang Lutz, M.D. I just got it and have only skimmed a few sections. Its paperback, availalbe from Barnes and Noble. One of my clients recommended it because she got it. It is supposed to be based on 40 years of clinical research conducted on over 10,000 patients. It covers a lot of topics not featured in most other low-carb books--gastrointestinal disorders, and more. I have not read much yet... just the better part of one chapter. Rachel Matesz