Fibafirst Rabbit by Supreme Science is a fiber rich (30%) rabbit feed for natural feeding behaviour. It's loose chunks without added sugar (as opposed to other feeds that contain Melasse). The fiber rich feed, which is also natural feed to rabbits, is based on Timothy hay, alfalfa strands and oatmeal. The fibers wear down the teeth in a natural manner. When rabbits are no longer used to fiber rich feed without sugar, slowly transition to fibrafirst to prevent intestinal complaints.