Fish meal is a commercial product mostly made from fish that are not used for human consumption; fishmeal is generally used to feed farm animals in agricultural setting. Because it is calorically dense and cheap to produce, fishmeal has played a critical role in the growth of factory farms and the number of farm animals it is possible to breed and feed. Fishmeal is made from the bones and offal left over from fish caught by commercial fisheries. The vast majority of the fish from which fishmeal is manufactured are not used for human consumption; rather, fishmeal is generally manufactured from by-catch.