For the following statistics, "adult" is defined as age 20 and over. The overweight + obese percentages for the overall US population are higher reaching 39.4% in 1997, 44.5% in 2004,
[13] 56.6% in 2007,
[14] 63.8% (adults) and 17% (children) in 2008,
[15][16] in 2010 65.7% of American adults and 17% of American children are overweight or obese, and 63% of teenage girls become overweight by age 11.
[17] In 2013 the
Organization for Economic Co-operation and Development (OECD) found that 57.6% of all American citizens were overweight or obese. The organization estimated that 3/4 of the American population would likely be overweight or obese by 2020.
[18] According to research done by the Harvard T.H. Chan School of Public Health, it is estimated that around 40% of Americans are considered obese, and 18% are considered severely obese as of 2019. Severe obesity is defined as a BMI over 35 in the study. Their projections say that about half of the US population (48.9%) will be considered obese and nearly 1 in 4 (24.2%) will be considered severely obese by 2030