I do not know about stone formation – you may want to check Dr. Karen Becker’s web site, part of Dr. Mercola’s web site. http://www.mercola.com Type in those key words, e.g., struvite crystals, calcium oxalate stones, oxalate, oxalate stones, something may come up.
You are correct with the low protein levels. That is what I am looking for too. My vet has asked me to reduce the protein level 30/70. I need to supplement something other than potato. My dog has a severe allergy to it. I believe my next choice to cut the protein will be pumpkin or sweet potato. (Presently, I’m feeding Purina’s Beyond, Grain Free, Wild Caught Tuna and Egg Recipe. Right now it is the only thing she can eat that doesn’t cause a major skin out break. The protein is too high which causes her to wet the bet constantly. Yes, she has been on Blue Buffalo and etc. with no luck or the protein is too high.)
Good luck with your quest.
