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Researchers say they think there's something in the avocado — other than just the healthy fat — that may lower bad cholesterol. Tastyart Ltd Rob White/Getty Images hide caption

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Tastyart Ltd Rob White/Getty Images

Eating some foods high in saturated fat is not necessarily going to increase your risk of heart disease, a study shows, contrary to the dietary science of the past 40 years. Cristian Baitg Schreiweis/iStockphoto hide caption

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Cristian Baitg Schreiweis/iStockphoto