Studies suggest cinnamon can help control blood sugar, but if you want to incorporate more of this spice in your diet, consider using the Ceylon variety. iStockphoto hide caption

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Knee pain is common, but surgery isn't necessarily the answer, researchers say. Inna Jacquemin/iStockphoto hide caption

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Ah, the cinnamon swirl: They're beloved by the Danish, but the traditional recipe for these pastries may be too spice-laden for European Union law. iStockphoto.com hide caption

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Mark Karney found the recipe for his mother's Hungarian nut roll in a dusty recipe box after she passed away. After lots of experimentation, he figured out how to make it and has revived it as a Christmas tradition. Courtesy of Mark Karney hide caption

itoggle caption Courtesy of Mark Karney

Sarah Ramirez runs an organization that brings excess produce to the hungry. Here, she gleans apples from a front yard. Scott Anger/KQED hide caption

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Not covered by Obamacare, but still sweet. Cristian Baitg/iStockphoto hide caption

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Food banks have become a primary source of nutrition for rural farmworker communities in the Central Valley. Scott Anger/KQED hide caption

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Though some people might need more of specific vitamins, multivitamins don't help most people, studies say. iStockphoto hide caption

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Students at Northeast Elementary Magnet, in Danville, Ill., play around. Fewer than 1 in 5 parents polled said their kids were getting physical education daily. Seth Perlman/AP hide caption

itoggle caption Seth Perlman/AP