Mine don't much like melon. Cassidy will eat it, but only if the other bunnies give it a sniff first. It's like she only eats it to stop them from eating it. Despite that, I've certainly not noticed any harmful effects. I don't give them the rind and I only give them small amounts. They rarely get fruit and only in very small quantities. I'm the meanest bunny mum in the world. Mwahahaha.