What is "nutraloaf"

Prison Loaf, sometimes called Nutraloaf, disciplinary loaf, food loaf, confinement loaf, seg loaf, grue or special management meal, is a food served in United States prisons to inmates who have misbehaved in various ways; for example, assaulting prison guards or fellow prisoners. It is similar to meatloaf in texture, but has a wider variety of ingredients. Prison loaf is usually bland, perhaps even unpleasant, but prison wardens argue that nutraloaf provides enough nutrition to keep prisoners healthy without requiring utensils to be issued.