I want to write to you today to let you know that I am placing a massive warning on ACV for cats. I gave my cat, after reading your message board, acv, just a few drops in his food as he was throwing up a lot and running out of kitty litter after peeing. Three days later he stopped eating. One month after force feeding, sub q fluids, appetite stimulants, pain killers, I had to put him to sleep. The vets felt a tumor. The first vet said that ACV contributed to liver failure and quick demise but holistic vet said no way. I just think that if your cat has an unknown underlying condition you could be playing with fire by giving him acv.
Rest in peace my love, Sai, the best cat in the world ever and never again.