Corn is a dry fruit that is often classified as a grain. The part of the plant that corn originates from is important when distinguishing between fruit and vegetables. A plant's reproductive part produces fruit, while its vegetative part produces vegetables.
Corn accounts for over 20 percent of nutrition and the majority of food production worldwide. Much of the corn harvested in the United States feeds livestock and pets. Corn is not only used as food for animals and humans; it is also used in the making of cosmetics, medicine, glue, ink and fabric. Byproducts of processed corn include beverages, cooking oils, sweeteners and starch.