Amaranth, known in Poland as amaranth, the grain of the 21st century, is native to South America. It has been known since 4000 BC. It is widespread throughout the world. In Poland, Amaranthus cruentus is the most popular. Amaranthus, similarly to white rice, brown rice, maize, buckwheat, barley, millet is counted among gluten-free cereals, which are recommended to people with coeliac disease and gluten intolerance.