I don't know if Wellness has removed menadione or not, but it's still listed on their ingredient list on the website. 2 of my 4 cats don't like Wellness anyways.
That's weird about the Orijen because although taurine is listed on their analysis, it's not on their ingredient list. I'll have to email them and ask about it. Still no word from Nature's variety about the clay, but the more I read about it the more I think it's not a bad ingredient. My only concern now is that it's pretty high up on the ingredient list and I want to make sure they're not using it as a filler.