A view from the starting line of the sixth annual Krispy Kreme Challenge in Raleigh, N.C., in 2010. The local children's health clinic takes its name from this annual charity race, which draws about 8,000 participants each year. Courtesy of Dustin Bates hide caption

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A Twinkie shows off its creamy filling in this file photo from 2005. A snack-cake sales slump is one reason Hostess Brands is seeking protection from its creditors. Tim Boyle/Getty Images hide caption

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Researchers looked at whether restaurants and stores that sold unhealthful food near high schools affected students' weight. M. Spencer Green/AP hide caption

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