Beets have a high nutritional value. The green leaves are especially rich in calcium, iron and vitamins A and C. It constitutes an exceptional source of folic acid and has a good content of fiber, manganese and potassium. Beetroot fiber has been shown to increase the level of antioxidant enzymes as well as increase the number of white blood cells.The beetroot is one of the richest sources of glutamine, a substance necessary for the health and normal functioning of the gastrointestinal tract. The pigment that gives beets their purplecrimson color, betacyanin,is also a powerful agent for inhibiting the development of certain cancers.