However, no one routine is the best for everyone, or there'd only be one instead of the jillions that are out there. The New Atkins Diet Revolution by Robert Atkins, M.D., is a good source of information. I usually don't keep people on a strict Atkins-type routine unless they are diabetic. I reintroduce carbs, but then the TYPE of carbohydrate becomes paramount.
Refined carbohydrates are universally OUT, including sugar and refined flour of all types.
Instead, I stress complex carbs. Some people feel wonderful on this type of diet, while others feel less energetic. It depends on your metabolism and biochemical makeup. Get the scoop on the glycemic index .