Cornfed

Cornfed is an adjective used to describe animals, especially cattle, that have been fed a diet predominantly consisting of corn (maize) as part of a feedlot finishing process. The term is common in North American livestock production and marketing, and it contrasts with grass-fed or forage-fed systems.

In beef production, corn finishing is associated with rapid weight gain and increased marbling in the meat, which can influence flavor, tenderness, and retail price. Finishing diets typically use corn as a major energy source and may include supplementary protein, minerals, and fiber from other feeds. While corn is central to the diet, the exact formulations can vary by operation and region.

The use of the term cornfed reflects marketing and production practices rather than a regulated standard. Some consumers and industry observers equate corn finishing with consistent flavor and texture, while others prefer grass-fed beef for perceived differences in nutrition, welfare, or sustainability. Debates about taste, health considerations, and environmental impact continue in markets where multiple finishing systems coexist.

See also: grass-fed beef, feedlot, marbling, beef production.