Bootsie's like that. She's very lean, but not skinny. She only eats ProPlan dry
food, period. I already know that's not a good diet, but unfortunately Boots
doesn't read this newsgroup and she's the boss. If I give her canned, she not
only refuses, but she bolts and runs like her tail is on fire.
Don't give him tuna. It'll only make it worse and tuna's not a steady diet. How
about canned food? Does he refuse that too? BTW, the Petsmart I shop at has a
return policy on cat food. If the cat won't eat it, take it back and they'll
refund or exchange. Then they donate those bags to shelters.
Good luck. Keep trying. I hope you find something he likes.
Sherry

What brands are you offering him? Maybe we can suggest some others.

Karen

Tuna lacks the taurine so essential for cats. Without taurine, they go
blind. Taurine can be found in natural sources as well as commercial
food, of course, such as rodent brains.
http://www.bluecross.org.in/petcare018.html

Feed commercial food. You can give him tuna (watch for mercury as well),
but not exclusively.

There are other things that can make a cat not want to eat besides being
"picky". Has he been checked to make sure his teeth are all okay, there
are no abscesses, no problems with his jaw? Is he at all congested or
stuffy? Is it possible eating gives him an upset tummy? A full vet check
is in order before deciding he's just being a finicky doofus. He may
have an enlarged organ pressing against his stomach, making him feel
full.

You can supplement his diet with a thick paste called Enervite (other
brands include KittyVite, NutriMalt) that has extra calories, fat, and
vitamins. It works pretty well as an appetite stimulant, too.

If you can get him to eat wet food, it is better for him than dry.
Try heating the food. It makes it smell better.
Also, try free-feeding him if he isn't already. Leave some dry down for
him to munch on all day.

Good luck!