We currently use Worlds Best Cat litter. We have no issues at all with it, and the sphynx cats use it no problem, and we find that it's not too bad with dust and good for clumping etc. The reason I put up this post, is I see some people mentioning yeast infections that are associated with the Worlds Best Cat litter. I am wondering what this is caused from, the corn? And how would you know if your cats has a yeast infection? What would the signs be? We are really happy with the litter, and like I said, haven't had any issues. But if it could be bad for them and cause yeast infections, that just concerns me a bit. So I was hoping for some more info on that.