Salisbury steak is a dish made from a blend of ground beef and other ingredients, which is shaped to resemble a steak, and is usually served with gravy or brown sauce. Hamburg steak is a similar product, but differs in ingredients. Salisbury steak was invented by an American physician, Dr. J. H. Salisbury (1823–1905), an early proponent of a low-carbohydrate diet for weight loss; the term "Salisbury steak" has been in use in the United States since 1897.