I'm thinking now of someone I knew who put himself on a cyclical no carb diet - he would eat meat only and work out (weight training) for a week, then eat moderate amounts of carbs, then cycle through again. But the minute he pulled a muscle or tore something, he went off the diet until he healed because *injuries don't heal without carbs*.

I can't see that anyone could possibly maintain a healthy lifestyle without eating adequate amounts of all the things that they need, and I am always suspicious of diets that go to extremes. I certainly wouldn't do anything radical without talking to an actual medical professional or nutritionist. I really don't trust the word of some guy trying to sell books when it comes to my health. Guess I've seen too many fad diets come and go to really believe everything I read. Colon cleansing, anyone?