Yes, so join team no-peeling! As is true with most foods, a significant portion of nutrition is found in the skin. In fact, about 25% of the potassium, and more than 50% of the iron in a potato is found in the skin! However, if you’re not on board with skin-in mashed potatoes, I recommend you turn the skins into crispy potato skin chips! You can also add these as a topping for additional texture.