Billionaires John and Laura Arnold are betting that the country's top nutrition researchers can get to the bottom of the obesity epidemic. Courtesy of the John and Laura Arnold Foundation hide caption

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This apple-topped salad is one of several products being recalled for potential contamination with the bacteria Listeria monocytogenes Ready Pac, Inc. hide caption

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Disney To Put Limits On Food Ads In Bid To Nudge Kids To Eat Healthier
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The new nutrition law gives local providers preference when they bid for school food contracts. Christopher Furlong/Getty Images hide caption

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