Rabbits make wonderful loving pets, but their diets are more complicated than just carrots and lettuce. In general rabbits should eat a small amount of fresh greens, daily, and this is to supplement your rabbit’s primary diet of hay.
As a responsible rabbit owner, you should make sure your rabbit is safe and healthy, especially in their diet. Rabbits are to be given about 1 cup of greens for each 4 pounds of their body weight, per day. Select four to six types of greens to give at each feeding. This gives your rabbit a diet varied in vitamins and minerals. If you are not sure that your rabbit has been given greens in the past, and/or your rabbit is under 4 months old, give greens slowly at first. Start with one green item at a time, checking to ensure it does not cause digestive upset and soft stools. Eliminate anything not tolerated by your rabbit. You will want to tailor these guidelines (with your vet’s assistance) to meet your rabbit’s specific dietary requirements based on their health or sensitivity to certain foods.
Fruits and carrots are considered treat foods. These should be given very sparingly, at most only 2 or 3 times per week and in only very small quantities (2-inch chunk or 1 inch slice). Fruits can include blueberries, apple, pear or strawberries. Sweeter fruits such as grapes and bananas should be given few and far between; they are very sweet and will lead to obesity.
Dried fruits have concentrated sugars so should be given in only very tiny pieces and only sparingly. If you give dried papayas or cranberries, for example, they should get only two small pieces a couple times per week.