Addressing obesity through formulation, innovation. In early 2010, 28.7 percent of U.S. adults aged 20 and older were obese, according to a report from the Center for Disease Control and Prevention (CDC), Atlanta. This is a slight increase from the 2009 estimate of 28 percent, states the September 2010 early release of estimates based on data from the January to March 2010 National Health Interview Survey report.