Sweet potatoes pack a powerful nutritional punch. They have got over 400% of your daily needs for vitamin A in one medium spud, as well as loads of fiber and potassium. They have got more grams of natural sugars than regular potato but more overall nutrients with fewer calories. Despite the terms sweet potato and yam often being used interchangeably, they are actually not even botanically related. Yams are almost exclusively grown in Africa and are more dry and starchy compared to a sweet potato. So how did these two vegetables become so intertwined? There are two different varieties of sweet potatoes, firm and soft. When soft sweet potatoes were being cultivated in the Americas, African slaves began calling them yams because of their resemblance to their familiar native vegetable. The name caught on as a way to distinguish between the two types of sweet potatoes. Today, you are unlikely to find a true yam in the grocery store unless you are shopping in an international market.
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