According to PetCareRx.com, the main staple of a pit bull's diet is protein. Pit bulls can be fed commercial brand dog foods, but it is important to make sure that the main ingredients are meat and that the foods contain minimal amounts of fillers.
Pit bulls can also be fed homemade dog food that consists of hamburger, chicken, boiled vegetables and rice, as well as canned dog food, refrigerated dog food, raw meat and raw bones. Homemade diets should consist of at least 70 percent protein. Foods containing high amounts of omega-3 fatty acids help pit bulls maintain a shiny coat, minimize shedding and promote healthy bowel movements.