In 2011-2012, the estimated prevalence of diabetes among U.S. adults was 12 percent to 14 percent and the prevalence of prediabetes was 37 percent to 38 percent, indicating that about half of the U.S. adult population has either diabetes or prediabetes, according to a study. Though data from recent years suggests that the increasing prevalence of diabetes may be leveling off.

Source: Study finds high prevalence of diabetes, pre-diabetes in U.S.