'Grain Brain' review, avoid your daily bread

 Dr. David Perlmutter, a neurologist and a fellow of the American College of Nutrition, writes in "Grain Brain" -- out last month and already a bestseller -- that "I'm here to tell you that the fate of your brain is not in your genes. It's not inevitable . . . It's in the food you eat."

He says: "Brain dysfunction starts in your daily bread . . . " Literally: "Modern grains are silently destroying your brain." Not just refined white flour, but whole wheat grains. They put you at risk, he writes, of obesity, diabetes, Alzheimer's and other dementias. But fat -- long considered the enemy -- is actually "your brain's best friend."