I agree with Karen, timothy hay should always be available to an adult rabbit. A rabbits' gut must move all the time and the hay insures that that happens. Gut stasis, when the gut slows down or stops completely, if the poos get really small, if the bunny stops eating and drinking, if the bunny doesn't move and stays hunched up in a corner is a danger sign......You have a VERY ill rabbit that needs emergency care by a rabbit specialist vet, NOT a dog/cat vet. Hay is fiber and keeps the gut moving and a rabbit should have access to hay all of the time. I cannot emphasize enough how important hay is in rabbit diet.

Bunny specialist vets then recommend dark green veggies, some of them should be limited...see nutrition in www.rabbit.org

As "desert" or a special treat..bunnies can have up to 2 tablespoons of pellets per 5 lbs of bunny. Pellets were developed to be an easy feed and to put weight on meat rabbits. Pellets are high in calcium and can cause bladder stones after awhile. Pellets can also cause the gut to slow down as described above. As one vet said, do wild rabbits eat pellets? No, they are not a natural food and should be discouraged...and rabbits get along just fine without them in their diet.

Since rabbits have become so popular as pets, scientists and rabbit lovers have, the last 15-20 years, conducted a lot of research on rabbit dietary, social and medical needs. Information on rabbit care has changed dramatically and with this updated information, rabbits now have longer life spans and we now know what it takes to give a bunny a long and healthy life. Unfortunately there is still a lot of bad info circulating on rabbit care...people who haven't bothered to look at the new info, or who just don't want to be bothered because "that's the way grandpa did it". Avoid these people and check the web for rabbit care info. Good luck!