Feed your adult rabbit a diet that combines essential fiber and stabilized nutrients with Oxbow Essentials Adult Rabbit Food. Adult rabbits have different nutritional needs than juveniles. They still need a lot of fiber to keep their digestive systems working properly and basic vitamins and minerals, but not as much as growing rabbits. Oxbow Essentials Adult Rabbit Food is specifically designed to meet the particular nutritional needs of adult rabbits. It is made from timothy grass hay to aid in digestion and contains optimum protein and calcium-to-phosphorous levels. To transition your rabbit to his new food, gradually replace his current food with the new food over a four-week time period to prevent digestive issues and finicky eating patterns.