A: The research that indicates whole grains are healthy is all conducted the same way: white flour is replaced with whole wheat flour, which, no question, is better for you. But taking something bad and replacing it with something less bad is not the same as research that directly compares what happens to health and weight when you eliminate wheat altogether. There’s a presumption that consuming a whole bunch of the less bad thing must be good for you, and that’s just flawed logic. An analogy would be to say that filtered cigarettes are less bad for you than unfiltered cigarettes, and therefore, a whole bunch of filtered cigarettes is good for you. It makes no sense. But that is the rationale for increasing our consumption of whole grains, and that combined with the changes in wheat itself is a recipe for creating a lot of fat and unhealthy people.
--Dr. William Davis, author of Wheat Belly