Humans thrived for millennia without 11 servings of grains a day. So why did the government tell us to eat that way? We explore the 10,000-year history of grains—from rare delicacies to subsidized staples—and why the modern American diet has led to a rampant chronic disease crisis.Learn how to navigate the supermarket "danger zones," why you should choose quinoa over spaghetti, and how the new "upside-down" pyramid might actually align better with our ancient DNA.