I wish some vets would do the research you have. I used to work for a pet supplies store and people would ask about cats with urinary tract infection and kidney problems all the time. It was nearly impossable to convince them to feed a canned diet. They always said "but my vet said that dry food was bad for their teeth." Great, choose your cat's teeth over its kidneys! They'd always pick up Purina One Uninary Tract Health and then wonder why their cat never got any better.