Cereal grasses such as Green Barley have been found to be excellent sources of beta-carotene, vitamin K, folic acid, calcium, iron, protein and fibre, as well as good sources of vitamin C and many of the B vitamins, including B12. In addition, the cereal grasses have been shown by studies to contain unidentified factors, which provide a variety of health, growth and fertility benefits to humans and animals. These unidentified factors have potent benefits, despite them not being attributable to any known nutrient.