May 9, 2009

Exercise will not stop obesity

Without a million dollar grant, I have concluded obesity in America started with over-eating, not the lack of exercise.

My own story was evidence. I lost 94 pounds by NOT over-eating. NOT by more exercise.

Now a new study concludes the same thing. From Times on Line:

Over-eating rather than more sedentary living is almost entirely to blame for the rise in obesity in the developed world, according to research.

A study of the US obesity “epidemic” — a precursor of world dietary trends — suggests that there has not been any significant reduction in levels of exercise in the past 30 years. It concludes that the surge in obesity is a result of excessive calories.

Researchers at the World Health Organisation Collaborating Centre for Obesity Prevention, at Deakin University in Victoria, Australia, said that the findings would be reflected in other industrialised countries such as Britain.

Last year the largest British study into obesity, backed by the Government and compiled by 250 experts, concluded that excess weight had become the norm. It predicted that by 2050, 90 per cent of today’s children will be overweight or obese — costing taxpayers an estimated £50 billion.

Professor Boyd Swinburn, chairman of population health at Deakin University, said that US children had grown on average 9lb heavier and adults were 17lb more. For the US population to return to leaner 1970s levels children would have to cut their intake by about 350 calories a day — equal to a can of fizzy drink and a small portion of fries, and adults by about 500 calories — about the same as a Big Mac burger. Alternatively children would have to walk an extra 2½ hours a day, and adults nearly two hours.

“Getting everybody to walk an extra two hours a day is not really a feasible option for countering the epidemic,” Professor Swinburn said. “We need to limit our expectations of what an increase in physical activity can achieve.” He said that the findings did not seek to negate the value of exercise for weight control.

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