March 9th, 2010

ABC News Medical Unit Reports:

People facing weight problems often know why. That weakness for donuts in the morning, that meatball sandwich at work, or that dead-tired feeling that makes you wince at any activity but channel surfing.

Sure, most of the nation needs to eat less and move more. But is that the only reason America is so fat?

As more scientists and sociologists look at our bulging waistlines, some unusual explanations for the nation’s weight gain in the last 30 years are popping up.

Last week alone, research has questioned whether bacteria, our genes or wine could be influencing weight gain.

In 2008, the National Health and Nutrition Examination Survey estimated that 33.8 percent of adults in the United States were obese.

But the rates aren’t creeping up evenly. Obesity rates for men jumped nearly 5 percent since 2000, from 27.5 to 32.2 percent of all men reportedly obese. Women’s obesity rates gained two percentage points in the last eight years, from 33.4 to 35.5 percent.

Considering the poundage, it’s no wonder why some think there’s an environmental explanation for our fat. Following are three scientific findings that hint it isn’t completely an individual’s fault he or she is overweight

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