A potato's skin packs more nutrients—iron, calcium, potassium, magnesium, vitamin B6 and vitamin C—ounce-for-ounce than the rest of the potato.
For example, 100 grams of potato peel packs seven times more calcium and 17 times more iron than the same amount of potato flesh.
Ditch the skin and you'll also lose up to 90 percent of a potato's iron content and half of its fiber.
And don't forget the skin of a sweet potato is loaded with a significant amount of beta-carotene, which converts to vitamin A during digestion.
Vitamin A is essential for cell health and immune system regulation, and it is extremely useful in maintaining organ function.
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