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US obesity fell (slightly) last year

By Caroline Scott-Thomas , 13-Jan-2012

The number of obese adults in the United States declined slightly in 2011, according to a new Gallup poll, from 26.6% of the population in 2010 to 26.1%.

The researcher said that the decline was largely due to more people reporting a normal weight – 36.1% in 2011, compared to 35.4% in 2010 – while the number of overweight Americans showed little change, suggesting an overall downward shift in body weights.

Although the 0.5% move in the obesity rate is a slight change, the result is significant because of the enormous cost to society of obesity-related illness and disease, Gallup said.

“The slight drop in America's obesity rate is a positive reversal of what was previously a negative trend. The cost of obesity is so high that even this small improvement has the potential to save the American economy a significant amount of money,” its report said. “…But with more than one in four adults still obese, the nation has a long way to go to achieve lasting change.”

Gallup said its own research has found obesity and associated health issues to cost about $153bn each year, but figures vary widely. A December 2010 estimate from the Society of Actuaries suggested the total cost the US economy could be as high as $270bn a year.

Gallup’s findings are based on data from its Gallup-Healthways Well-Being Index, which has included self-reported information on body weight for a random sample of American adults since 2008. The 2011 poll included data from more than 335,000 US adults from all 50 states and the District of Columbia.

Whether a person was considered obese, overweight or normal weight was determined according to body mass index (BMI), a ratio of height to weight.

Demographic groups most prone to obesity were blacks, low-income Americans and those aged 45-64, the study found.

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