Is the skin of the potato more nutritious than the potato?
The answer is that, ounce for ounce, the potato skin has more nutrients than the rest of the potato. The skin of the potato contains B vitamins, vitamin C, iron, calcium, potassium and other nutrients along with 2 grams of fiber per ounce.
A small potato (1-¾ inch to 2-½ in in diameter) without the skin contains 108 calories, 2.2 grams of fiber, 15% of your daily value (DV) of vitamin C and 2% of your iron.
That same potato with skin will have 3 grams of fiber, 30% of your daily value for vitamin C and 4% of your iron.
Be sure to wash the potato well and remove any obvious blemishes before cooking.