Okay to eat loofah?

My two previous chins never cared for loofah. But my new chin, Ripley, wants to eat it. I cut her a small slice, but she doesn't seems to be shredding it. She thinks that it is a treat. She is only 5 months old, so I don't really want her eating it at all now. But is it okay when she gets older to let her eat it in small amounts? Thanks.