Parsnips

Parsnips are an excellent source of vitamin C, folic acid, pantothenic acid, copper, manganese, and fiber. They also provide vitamin E; the B vitamins niacin, thiamine, riboflavin, and B6; and the minerals magnesium and potassium.
Parsnips are lower in calories and provide only about half as much protein and vitamin C as potatoes, but they contain more fiber and folic acid. Although closely related to carrots, they lack beta-carotene and, consequently, the orange color. Parsnips provide more potassium than carrots.
Nutritional Facts :
One-half cup of boiled parsnips provides 63 calories, 15.2 g carbohydrate, 1 g protein, 0.2 g fat, 3.1 g dietary fiber, 10 mg vitamin C, 45 mcg folic acid, 286 mg potassium, 8 mg sodium, 54 mg phosphorus, 29 mg calcium, and 23 mg magnesium.