Basic Rules. Ideally the body building diet should include food items that contain all categories of nutrients. It is essential to consume all the nutrients, be it proteins, carbohydrates or fats. Some of the various items that bodybuilders can consume for the intake of proteins are: lean meat, fish, eggs, milk, nuts etc. For carbohydrates, brown rice, potatoes, whole meal bread, fresh fruits and vegetables can be the best bet. However, indulging in white flour products can...