Wheat (Triticum aestivum) has been used by humans for thousands of years, mainly as a cereal crop but also as the base of fermented products such as beer. However, it was not until the early Twentieth Century that American research into high-performance animal feed discovered it to be a useful dietary product not only for livestock but also for humans.While Wheatgrass is known for the broad range of its nutrition, it is in particular a useful source of Vitamin A, the antioxidant Vitamin C, Folic acid and the magnesium-rich green pigment Chlorophyll. Its protein contains 15 of the 22 amino acids, including all of the eight essential amino acids that the body can"t make for itself.