I have read that bad breath can be a sign of diabetes or kidney problems in cats. But what is considered to be unusually bad breath?? Sometimes I think I just look for things to worry about
Oops! I re read your post and you want to know how bad is bad breath? I think that as a baseline sniff test your kitty's breath when his/her vet has given a clean bill of health & use your scent memory to gauge from then on. I do know that a kitty/dog with dental issues has repulsive breath ( as do humans for that matter. )
Attitude and Nuts both have cat breath but it hasn't changed and every time I take them to the vet I ask how their teeth are(I'm sure the vets are sick of me asking considering Attitude seems always be at the vet, lol.) I have a good reason to stay on how their mouths are since FeLV+ cats have a higher risk of gum disease(and they can also get mouth/tongue ulcers, Attitude had a tongue ulcer at her first vet appointment) and so far so good. The best thing to do is the next time you have to see the vet ask about his/her teeth. My vet said how nice and pink Attitude's mouth was(in a good way) and since my vet always checks mouth/teeth as part of a normal exam(sick or well) yours should too. When they take a look just ask how the teeth look. Same as the above poster, make sure your cat is indeed healthy and go from there and check for changes in breath from there. It shouldn't be really bad though. If you can smell it when you aren't close(I have to lean forward and put my nose right next to the mouth when they yawn) or the smell makes you want to ralph or it's an overly sweet smell(diabetes) then I'd say it's a problem.
What kind of food do you give your cat?
Because I know that if you feed your cat wet food 3+ times a week, then their breath can be realllllyyy smelly.
I feed hill's w/d to one for weight issues and c/d to the other due to her history with crystals. I only smell it when he's in my face and yawns and it isn't gag worthy or anything. I'm just extremely paranoid when it comes to my babies