Amaranth is a plant that grows in Asia, as well as Central America, and is a very nutritious food grain. It is mainly cultivated as a food grain, although the leaves of this plant can also be consumed. Amaranth grains are rich in protein and are gluten-free, proving them to be a very good option to those who have gluten intolerance. It is also rich in dietary fiber, and minerals like iron, manganese, potassium, and copper.