A nutritional powerhouse, the sweet potato is only distantly related to the potato. And don’t call it a yam—it’s not even the same species!
What you get: A 4-ounce serving of sweet potato (about 1/2 cup) provides 390% daily value (DV) of vitamin A, 40% DV of vitamin C, 18% DV of fiber and 13% DV of potassium, plus vitamin E, iron, magnesium and phytochemicals, such as beta carotene, lutein and zeaxanthin.
Shopping Tips: Choose sweet potatoes with taut, papery skins and tapered ends. The intensity of the orange color varies in different cultivars of sweet potato—darker colors are higher in beneficial carotenoids.
Storage Tips: Sweet potatoes should never be refrigerated. Store them in a cool, dark place with good air circulation, to discourage softening, sprouting and spoiling. If potatoes begin to sprout during storage but are still firm, remove the sprouts and any eyes that are beginning to sprout before eating. Properly stored, sweet potatoes will keep 10 to 12 weeks.
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