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Men's Health

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Belly Fat Bad for Men's Bones

WebMD Health News
Reviewed by Louise Chang, MD

Nov. 28, 2012 (Chicago) -- Obese men with beer bellies may be at greater risk of weak bones and fractures than obese men whose fat tends to gather in the thighs and buttocks, a small study suggests.

Previous research has shown that belly fat is bad for women's bones. So when a recent study showed that obese men have more fractures than their non-obese counterparts, Harvard researchers wanted to find out if the type of fat mattered in men, too.

"What we found is that obese men with deep belly fat had much, much weaker bones than other obese men," says researcher Miriam Bredella, MD, a radiologist at Massachusetts General Hospital and associate professor of radiology at Harvard Medical School.

The study doesn’t prove cause and effect. Still, "men need to be aware that excess belly fat is a risk factor not only for heart disease and diabetes, but also for bone loss," she says.

The findings were presented here today at the annual meeting of the Radiological Society of North America.

Obesity: Bad for the Bones

According to the National Center for Health Statistics, more than 37 million American men over age 20 are obese. Obesity is associated with many health problems, including heart disease, stroke, and diabetes.

But for years, obesity and body fat were thought to have at least one redeeming quality: Stronger bones and a lower risk for osteoporosis and related fractures, says Thomas Link, MD, professor of radiology at the University of California, San Francisco.

That belief was crushed by a study linking obesity to fractures as well as two other studies linking body fat to weaker bones and lower bone density, he says.

The new study puts the nail in the coffin and takes the research a step further, Link says.

"It shows that obese patients with a lot of fat around the gut and liver have less bone strength and lower bone quality, and are probably at great risk of osteoporosis and osteoporotic fractures," he says. He was not involved with the study.

Belly Fat Bad for the Bones: Study Details

Bredella and colleagues studied 35 obese but otherwise healthy men whose average age was 34.

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