Organic Wheatgrass Grain Wheatgrass is a food prepared from the cotyledons or seed leaves of the common wheat plant. Wheatgrass grain can be used for sprouting. Wheatgrass is full of many nutrients including vitamins such as A, C and E and is rich in potassium and calcium along with much more health benefiting elements. Wheatgrass is used to make a juice or can be made into powder. Contains wheat.