Sweet potato skin is edible, and you may miss out on some health benefits if you toss it. . . .The fiber content of sweet potatoes mainly comes from the peel. Therefore, removing it will decrease your fiber intake Sweet potato skins are rich in fiber, antioxidants, and nutrients like potassium, manganese, and vitamins A, C, and E, all of which may help improve your health. Research has shown that the nutrients in vegetables and fruits tend to be concentrated around the peel. Thus, removing the peel can reduce your intake of nutrients and antioxidants.