The U.S. maize crop has three primary uses: food, animal feed, and ethanol. Food makes up the smallest percentage. Most is used for animal feed and the remainder for ethanol. Ethanol “eats first” when it comes to the U.S. maize crop.
Unlike during recent food price crises, wheat and rice prices are relatively low, offering poor consumers options other than maize – but wheat prices are heating up.
Via CGIAR Climate