Another fad, and another way to make a lot of money. Too much of anything can be detrimental to ones health. It's all about balance, eating a variety of healthy foods, and exercising on a regular basis. I eat a small amount of whole grain breads, along with fruits vegatables, good carbs, and dairy products, and I am still my highschool weight at 57 years old, 40 years later. People who say this works have made other changes in their lifestyle as well. A certain amount of whole grains are necessary for a complete diet.