I just switched the cat litter to a tofu clumping based cat litter while I'm currently waiting for a non clumping litter to come for our cats. I just noticed that mama cat likes to eat the cat litter that has tracked onto the mat. Is this going to be ok for the cat, or should we just consider changing it back to the clumping clay litter for now? The reason being, mama cat had her first litter of kittens 10 days ago and I don't want the clay litter to track all over the room when the kittens are going to walking around soon.