Maize, rice and wheat together make up 87% of total grain production all over the world. There are many more cereals that are used in specific regions and are not as popular as the above mentioned ones. Teff is one such cereal, grown widely in Ethiopia but hardly known elsewhere. It is rich in fiber and protein. It is often used as staple food, or sometime used as breakfast cereal. Wild rice is grown moderately in North America; Amaranth was initially a staple crop of the Aztec Empire and now it s widely cultivated in Africa.