Why does my puppy's breath smell bad if her teeth are clean?

Yes, this can be a sign that something is wrong with Daisy's mouth causing this smell, but it could also be due to something she is eating. Eating poop is common in puppies, and this will cause bad breath. I'd have her seen by a vet for this bad breath.

At his age, the bad breath could be an abscess or the normal shedding of his puppy teeth. Take a good look inside his mouth to check for any abnormalities. You may also consider having him examined by the veterinarian if you are not sure what you are seeing. Otherwise, I recommend to brush his teeth. This is one of the best ways to maintain dental health: https://www.petcoach.co/article/brushing-teeth-home-dental-care/ I hope this helps and please feel free to post any additional questions.

I would guess that this is potentially food related, and if it is transient and he is doing well on his food otherwise there may not be anything to be worried about. If it bothers you, you could try changing his diet to another flavor or another brand altogether (I recommend sticking to foods by Purina, Hill's, Royal Canin, Iams or Eukanuba). You could also consider trying a probiotic supplement. Although Guido is young he could still also have a tooth problem and if the odor seems to be around all the time you may want to have your vet examine his mouth.

I would bring him in for an exam. There are related organ changes that can produce bad breath. Organ changes Ike be best evaluated with blood work and a good physical exam. Your dog is young so it limits my differential list. It makes me think more of something congenital or a basic nutritional deficiency

Yes, the metallic smell can be from teething. I would not be overly worried about it. All her adult teeth should be in by about 6 months of age, if after that the smell persists then you should have your vet check her out. You can give her 1/4 cup of canned pumpkin per day (pure pumpkin, not pie filling) to help with her pooping.

It's likely a normal smell for puppies at this age. This "puppy breath" is very strong and unpleasant smelling, but goes away and turns into dog breath around the time they are 3-4 months old. If the pups are otherwise normal, then I would not be concerned. They are due for their first vaccines between 6-8 weeks of age, so you can have the vet check the breath when you take them in for that. They usually do a thorough "first puppy exam" when you initially take them in at that time. I hope that helps and all the pups stay healthy.

I really don't think it is anything to be worried about. I am not sure why he would have this smell. Usually a sweet smell of the breath is in relation to diabetes but her sure is young to have that, but it is not impossible. I suggest you just keep monitoring him and if the smell does not resolve or you start noticing her is drinking a lot of water and peeing a lot more he should see a vet.