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Drinking Our Way to Obesity

Calories From Beverages Doubled Since the 1960s
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WebMD Health News
Reviewed by Louise Chang, MD

Dec. 10, 2007 -- Americans now get nearly twice as many calories from beverages as they did in the 1960s.

The finding comes from an analysis of national surveys conducted in 1965, 1977, 1988, and 2002 by doctoral student Kiyah J. Duffey and Barry M. Popkin, PhD, of the University of North Carolina.

In 1965, Americans got about 12% of their daily calories from things they drank. Calories from beverages went up decade by decade. By 2002, beverages made up 21% of daily calorie intake.

"By 2002, 30% of the U.S. population was consuming a quarter of calories or more from beverages," Duffey tells WebMD. "This is just a huge amount."

It isn't just sodas, although by 2002 Americans were getting 100 more calories a day from sodas then they were in 1965. Alcoholic beverages, 100% fruit juice, and fruit-juice drinks contribute significantly more calories to our daily diets than they did in the 1960s.

So what's the big deal? Duffey says beverage calories don't fill you up the way food calories do.

"Beverages are an additional source of calories, not something we are substituting for other foods," she says. "This really affects the calorie-in/calorie-out scale. Even small changes in beverage consumption can have an effect on stemming weight gain and perhaps, in the long run, addressing some issues of the obesity epidemic."

The findings come as no surprise to Kathleen Zelman, MPH, RD, WebMD's director of nutrition.

"Nowadays you can go to the corner Starbucks and have a cup of hot chocolate for 400-plus calories, so it's not surprising we continue to get more calories from beverages," Zelman says. "And beverages satisfy thirst, not hunger. It doesn't matter how much you drink -- it doesn't affect how much you eat."

The findings neither surprise nor impress Maureen Storey, PhD, senior vice president for science policy at the American Beverage Association.

"Beverage choices have changed in the last 40 years and beverage patterns have changed," Storey tells WebMD. "There have been many changes over 40 years. We baby boomers are 40 years older; our whole lifestyle has changed."

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