Now that's a big root: Sweet potatoes aren't tubers, or thickened stems, like potatoes. Sweet potatoes are roots — swollen and packed with starch.
May 5, 2015 People have been farming — and eating — a GMO for thousands of years without knowing it. Scientists have found genes from bacteria in sweet potatoes around the world. So who made the GMO?
NPR producer Olly Dearden is a fan of most classic Thanksgiving dishes, but calls sweet potatoes topped with marshmallows a "culinary abomination."
November 23, 2014 Thanksgiving traditions can be a bit inscrutable for people who didn't grow up in the U.S., like NPR producer Olly Dearden. He talked with several experts and got some answers to his questions.
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A well-traveled root: A vendor sells sweet potatoes at a market near Manila in 2011. The Portuguese brought the root to the Philippines all the way from the Caribbean.
Ted Aljibe/AFP/Getty Images
January 23, 2013 The genes of the root vegetable have a juicy story to tell of trans-oceanic adventure. A DNA analysis of sweet potatoes adds evidence to the theory that ancient Polynesians visited South America long before the Europeans arrived.
Sweet potato evangelist Maria Isabel Andrade from the International Potato Center drives around Mozambique in her orange Toyota Land Cruiser.
August 15, 2012 In Africa, a nutrition success story: Swapping orange sweet potatoes for white ones is improving the health of children by boosting vitamin A levels. Researchers are now trying to duplicate their success with other crops.
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