Sweet potatoes are good for you, with lots of vitamins and minerals. This root vegetable is qualified as an excellent source of Vitamin A (in the form of beta-carotene), a very good source of Vitamin C and manganese. It is also an excellent source of copper, dietary fiber, vitamin B6, potassium and iron. What more could you ask for on one vegetable. Oh, what a wonderful aroma from your oven when you prepare this scrumptious souffle!