There are quite a few food choices for rabbits, but commercial pellet feed is the most popular and easiest to manage. The pellets are high in fat and protein. It is recommended that you feed your rabbit ½ cup of pellets per 5 pounds of body weight every day. Depending on how much you supplement with other foods, you may be able to reduce this to 1/8 cup per 5 pounds. Pregnant rabbits or rabbits under 8 months of age should be fed unlimited amounts of feed.