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Thu Oct 30 17:55:51 SAST 2014

THE BIG READ: World must get moving to fight obesity crisis

Sapa-AFP | 28 January, 2013 00:10
Overweight children dance during a weight-loss class in Beijing, China. Sedentary lifestyles have made obesity a headache globally Picture: GUANG NIU/GALLO IMAGES

Obesity has become a pandemic that could leave more than half of all adults worldwide overweight within two decades, experts say.

They have called for urgent action beyond just blaming people for lacking willpower.

Speaking at the World Economic Forum in Davos, health, nutrition and fitness experts said the world's increasingly deadly obesity crisis needed to be tackled with the same determination policymakers once had about fighting smoking.

With our food more and more unhealthy and our lives increasingly sedentary, answers are needed to address a crisis that is driving up diabetes, boosting heart disease and already killing 2.8million adults a year, they said.

The current figure of 1.4billion adults already overweight globally was set to soar, Linda Fried, dean of the Mailman School of Public Health at Columbia University, told a panel on obesity at the annual gathering of the global elite.

"In another 20 years, if things continue to increase the way they are, it may well be that 50% to 60% of the world's adult population will be overweight," Fried said.

"If this were an infectious disease we might call it a pandemic. It's not regional, it's global, it's increasing rapidly, it's continuing to escalate - those are the basic definitions of a pandemic," she said.

The first step to resolving the crisis, the experts said, was overcoming the instinctive reaction many have to obesity - blaming the obese themselves instead of the conditions around them.

"In 30 years, the percentage of the world's population that is overweight or obese has doubled," Fried said.

The blame rested instead with the easy availability - and relative cheapness - of higher-calorie foods and increasing urbanisation that had led to less active lifestyles, the experts said.

Lisa MacCallum Carter, Nike's vice-president for access to sport, said obesity was linked to an "inactivity crisis" as a result of urbanisation.

She said significant amounts of daily exercise from incidental movement had been lost, with, for example, people now sending e-mails instead of walking across the office to talk to a colleague.

She cited research showing that Americans are 32% less active than in 1967, and if current trends continue, they will be 50% less active by 2030.

In just half a generation, she said, the Chinese had also become 45% less active.

At the same time, the foods we eat are becoming less healthy, with fattier, higher-salt and artificial products easier to produce and distribute.

Some governments, such as the U S , were encouraging this by subsidising industrial food production, as with corn syrup, which is widely used in prepared foods as a sweetener and thickener, one expert said.

But some policy makers have taken encouraging steps to fight obesity, like New York mayor Michael Bloomberg . His crusade against junk food has led to the city banning the sale of super-sized soft drinks and requiring fast-food outlets to provide calorie information on menus.

The experts said steps like widespread calorie-labelling laws, limits on portion sizes and increased taxes on unhealthy food would make a difference.

Paul Bulcke, CEO of Swiss food giant Nestle, said too much blame was being laid on food companies: "It is a very complex problem. Yes, we are attacked, but that comes a bit from a society that wants to blame."

He said Nestle supported "meaningful labelling" of its products and that governments had an obligation to increase education about nutrition.

MacCallum Carter said more had to be done to restore physical activity to daily life.

"On the nutrition side this problem is being looked at in a very sophisticated way," she said. "But we're certainly not resolving the physical activity crisis."

The experts said children needed to be involved in sport, and individuals, companies and governments needed to work together to boost physical activity, for example by redesigning urban spaces to require more walking.

"We have a health emergency, it is global and it is of huge dimensions. We can only solve it together," Fried said.

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