Pass The Sweet Potatoes (But Not The Yams) Chris Remington Tuesday, November 21, 2017 | Sacramento, CA Listen / download audio Update RequiredTo play audio, update browser or Flash plugin. A freshly-packed box of Quail H Farms sweet potatoes.Randol White / Capital Public Radio One of the most beloved Thanksgiving food items may not be what you think it is. Almost any yam that you buy at a grocery store or local restaurant is in fact, a sweet potato. Cap Radio's Randol White investigated the history behind this Thanksgiving staple and explores why food producers are looking to take the word yam out of the picture completely.