This is for the world.  39% of adults aged 18 years and over were overweight in 2014, and 13% were obese. 42 million children under the age of 5 were overweight or obese in 2013.  http://www.who.int/mediacentre/factsheets/fs311/en/ Adults in America  Percent of adults age 20 years and over who are obese: 35.1% (2011-2012) Percent of adults age 20 years and over who are overweight, including obesity: 69.0% (2011-2012)  Kids in America  Percent of adolescents age 12-19 years who are obese: 20.5% (2011-2012) Percent of children age 6-11 years who are obese: 17.7% (2011-2012) Percent of children age 2-5 years who are obese: 8.4% (2011-2012)  http://www.cdc.gov/nchs/fastats/obesity-overweight.htm 34.9 percent of American adults are currently obese.