High cost of obesity in US

One in every two American adults will be obese by 2030, adding hugely to the country's health costs, according to studies published that highlight the growing burden of the world's obesity pandemic.

On present trends, 50-51% of American men and 45-52% of American women will by 2030 have a body mass index (BMI) of 30 or more, adding as many as 65 million to the country's population of obese adults, says one of the papers.

Twenty-four million of these 65 million will be older than 60.

The calculation extrapolates national estimates for 2007-08, the latest years for which data were available, when about 32% of American adults were obese.

Obesity in the UK

Britain, too, will see a surge in obesity prevalence, from 26% to 41-48% in men, and in women from 26% to 35-43%.

By 2030, as many as 11 million more British adults will be obese; 3.3 million of them aged more than 60.

The study, led by Claire Wang of Columbia University in New York and Klim McPherson of Oxford University, says that medical costs will surge, given obesity's links with diabetes, cancer, heart disease and stroke.

"The combined medical costs associated with treatment of these preventable diseases are estimated to increase by over R400 billion per year in the USA and by close to R23 billion per year in the UK by 2030," it says.

Obesity kills more than tobacco

"Effective policies to promote healthier weight also have economic benefits."

Today, around 1.5 billion adults are overweight and a further 0.5 billion obese, with 170 million children classified as overweight or obese.

Tackling obesity accounts for between 2 and 6% of health-care costs in many countries and for some regions has even eclipsed tobacco as the biggest preventable cause of disease, according to the studies published in The Lancet.

They trace the pandemic to the 1970s and 80s, when a rise in food consumption per capita became coupled to a more sedentary lifestyle.

(Sapa, August 2011)

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Obesity pandemic

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