Rising Obesity May Be More About Exercise Than Diet

July 8, 2014 2:07 PM

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Rising Obesity May Be More About Exercise Than Diet

While increased caloric intake is often blamed for rising rates of obesity, no association between these was found in this study; in contrast, an association was found between the trends over time for lack of physical activity and high BMI numbers. "Our findings do not support the popular notion that the increase of obesity in the United States can be attributed primarily to sustained increase over time in the average daily caloric intake of Americans," concludes [lead author Uri] Ladabaum. "Although the overall trends in obesity in the United States are well appreciated and obesity prevalence may be stabilizing, our analyses highlight troublesome trends in younger adults, in women, and in abdominal obesity prevalence, as well as persistent racial/ethnic disparities."

The standard narrative, of course, is that we're eating more junk than ever and that's why we're getting fatter. The researchers didn't track exactly who ate what, but in addition to the lack of any difference in caloric intake, they also "observe[d] that total daily calorie, fat, carbohydrate, and ...

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