Low in Calories

Although a cup of cooked turnip is rich in essential nutrients, it contains only 30 calories and 4 grams of sugar, according to the Centers for Disease Control and Prevention. It also has no fat, sodium or cholesterol, making it a hearthealthy food. If you are on a calorierestricted diet, turnips are a better choice than most other root vegetables. The same serving size of beets or rutabaga contain 70 calories, while parsnips have 120, and both contain more sugar than the turnip.