I was told that it is a good idea to give an adult rabbit some oats on a regular basis to fatten them up a bit so if the rabbit gets sick and stops eating they can have a better chance of survival by living off the fat they have stored on their body. Can anyone confirm if this is true or is this a bad suggestion? My bunny is about 6 years old and she is a little on the slim side. She is mostly a dutch breed with some lionhead in her.