Nose-to-tail dining is a restaurant trend in which chefs are aiming to incorporate as much of an animal as possible into their menu. In some cases, this may mean buying and butchering whole carcasses on-site. However, not all restaurants will have the capacity for their own butchery. Some may arrange to purchase "the fifth quarter", from their butchery suppliers, which includes offal, frames and other less marketable cuts. Despite everything being used, not every part of the animal necessarily makes it to the plate. While this ethos often includes serving offal, bones and cartilage may be used for creating stocks and deep sauces. Nose-to-tail dining allows restaurants to make ethical, sustainable use of the whole animal.