diabetes was rapidly becoming a common disease, but only by the standards of the day. He conservatively estimated—based on what he considered careful studies done in New York, Massachusetts, and elsewhere—that only two to three Americans in every thousand had diabetes. — Times have certainly changed. In 2012, the latest year for which the Centers for Disease Control (CDC) have provided estimates, one in every seven to eight adults in this country had diabetes—12 to 14 percent, depending on the criteria used to diagnose it.