kohlrabi is also called German turnip. It is a vegetable  that is of the same species as cabbage, broccoli, cauliflower, kale, brussels sprouts, collard greens and savoy cabbage. The advantages of eating kohlrabi are: It gives you a wide array of antioxidants, such as vitamin C, that means you can prevent some diseases related to vitamin C’s lack; It also reduce your risks of diabetes, metabolic disease, and premature death.