The health and lifespan of rabbits will depend on their diets. You will have to focus on a rabbit-friendly diet, including fresh foods to minimize health issues. You can talk to your vet to choose the right food for your bunny. When it comes to a rabbit-friendly diet, you will have to focus on different types of veggies. Again, you will have to feed in moderation. The sugar level of rabbits needs to be proper. You will have to take care of sugar levels to avoid obesity. You can focus on high-fiber and low-energy fruits and vegetables. You can offer some sugary fruits as a treat occasionally. In addition to fiber, your bunny will need protein. Yes, protein will contribute to muscle development. Apart from that, bunnies will need carbohydrates for energy and water for hydration. It is worth mentioning that most of these are absent in honey.