Wheatgrass juice is made from the young grass of the wheat plant, Triticum aestivum. It's often consumed as a health tonic due to its high concentration of nutrients, including vitamins, minerals, antioxidants, and chlorophyll. Some people believe it offers various health benefits, such as boosting immunity, improving digestion, detoxifying the body, and providing energy. To make wheatgrass juice, you typically grow the wheatgrass at home or purchase it as a powder, frozen juice, or freshly pressed juice from health food stores or juice bars. Then, you can juice the grass using a specialized wheatgrass juicer or blend it with water and strain it through a fine sieve or cheesecloth.