Thanks! A GI panel does sound like the best next step, though he already seems in love with this new PetSmart brand "Simply Nourish" food. I like the ingredients...it's still mostly meat and no corn. The vet suspected that some of his diarrhea issues could be related to canned food and the start of his diarrhea did sort of coincide with us starting canned foods. Our old, late female got to where she couldn't easily digest dry and when we switched her to canned the boys went nuts for it. Eventually it got to where they turned-up their noses at dry, entirely. It was love at first bite with this new food, so we'll see if that makes a difference. Thor definitely seems brighter-eyed and less on-edge, today. Perhaps he's back on the road to his usual old behavior of eating and napping and eating and napping. Lately he'd been harassing us for food, sleeping less, and tense (for him).

It makes sense that the more nutritionally dense the food, the less a cat has to eat to be satisfied. That works for us, too. The better I eat, the less I eat. If only healthy stuff could taste like junk food...I am a major junk food junkie!

If we ended up having to give him B12 injections I'm not sure if we'd be able to do that ourselves. Our female was such a doll and so tolerant of shots, but Thor is really strong and does not deal well with that, at least not at the vet's office.