My retired vet recommended Purina Cat Chow when I first rescued my RB Peeka in '91, my current vet recommends it, too, and I've fed the Fur Posse nothing ever since. No vomiting, no allergies, no problems whatsoever. I've recently added a couple of tsp. of wet food to their diet but Purina has been a staple. No cat food is any good if they won't eat it plus Purina Cat Chow has never been on a recall list and it's inexpensive.