Sorghum (Sorghum bicolor) is a less well-known grain in the world food market. It comes in a distant fifth for most produced grains—behind barley, rice, wheat, and corn. While dwarfed by better-known grains (or cereals), sorghum is an important crop that has long played a vital role in certain diets. Other names for sorghum include great millet, Indian millet, and jowar. It’s a grass plant thought to have originated in Africa, where it has remained a major crop. It’s grown and sold for a number of purposes besides human consumption. Sorghum is a popular animal feed as well as an emerging biofuel.Today, more than 500 million people in more than 30 different countries rely on sorghum as a key part of their diet. Many people are also looking at sorghum for its unique characteristics. In particular, those with celiac disease have been drawn to sorghum as a source of gluten-free flour.