'In his new book Syndrome X, Stanford endocrinologist Gerald Reaven, says carbohydrates are more of a problem for some, like the 25 to 30 percent of the adult population who suffer from some degree of "insulin resistance." '

I believe excess carbs over the years are why the 25 to 30 percent now have insulin resistance. It would be better to actually prevent the insulin reistance in the first place. But some progress is better than none.