I am a regular follower of Dr. William Davis and his blog:
http://www.trackyourplaque.com/blog/
I bought his book and do recommend reading it. It is at odd with SB for several reasons, besides avoidance of all wheat and products containing wheat. Dr. Davis does not believe in the glycemic index as such. He totally believes that any blood glucose over 100 causes glycation and inflammation in the body. He believes oatmeal is a terrible choice (causes postprandial hyperglycemia) and all other grains, beans, sweet potatoes etc. Carbs should be kept at 100 gms per day or less and fruit should only be a handful of berries occasionally. He also believes occasional fasting is healthful to the body. He advises everyone to get a glucose meter and regularly check your BG one hour after eating. He believes that even those who can "tolerate" wheat and grains without symptoms (which include dermatological problems and neurological symptoms as well as GI ones) are still doing damage to their bodies by the production of AGE's (advanced glycation end products) that result in arthritis, cataracts, cancer, hypertension, etc. as well as cardiovascular disease and diabetes. He supports his theories with lots of research and backs it up with his own results in treating patients for years in his cardiovascular practice. He also writes about the fact that due to genetic modifications, our modern "wheat" is vastly different from the ancestral kinds when man first began eating grains. He has many historical references to health problems in civilizations that ate even early grains. He talks about the addictive properties of wheat and correlates it to an opioid effect on the brain. I'm sure a lot of our cravings we talk about on SB relate to this effect.
He also advocates having some advanced lipid testing that I am very interested in. Dr. Agatston writes about the difference between "large fluffy" LDL molecules and the "small dense" ones that cause atherosclerotic plaque which lead to heart disease. Dr. Davis recommends this same testing (which I would love to have done). It's not enough to know your cholesterol level. That doesn't really tell you anything (although most with high HDL's and low triglycerides have the "large fluffy" harmless LDL's).
I'm not sure I'm totally on board with a lot of his recommendations, but I loved this book and am very interested in the possibility of a lot of it being dead on. We keep seeing heart disease, cancer and diabetes rates increasing and when I look around, I see people eating huge amounts of carbs in their diets. Fat is villified, yet a lot of the current research is finding that this is not substantiated. Gary Taubes book "GCBC" is a great read about the poor and faulty conclusions from the 1960's that is still the foundation of current medical school teachings. Dr. Weil did a column recently about "rethinking saturated fats" and they may not be bad for you after all, especially in dairy foods. I also recommend reading "Sugar Nation" that recently came out. The author really bashes the American Diabetic Association and their high carb diet recommendations for diabetics. He cites again the huge increases in the number of diabetics and the failure of their current recommendations to halt the acceleration of this disease. The more I read, the more interesting the debate gets. Also, a lot of stuff I am reading supports Vitamin D supplementation (a lot higher than the current recommendations) as a crucial factor as well as normal thyroid functioning in all these diseases. Dr. Davis addresses all these issues regularly. As you can see, I'm really passionate about learning more about these topics.
