This one is a bit different than the chews but I wanted to add it so you knew it was out there. I just recently found out about this! Larger medical problems ( kidney failure, liver infections or problems, respiratory system problems)

Monitor its chewing time as it could most likely choke especially when it chews it too fast. If this happens, you should immediately throw the bone. Weight gain can be one of the biggest issues with dental treats,” says Evans. “Since dental treats need to be given on a daily or every other day basis to be effective, this can be a significant source of calories and needs to be taken into consideration when feeding your dog.” If this doesn’t sound like your dog, it’s possible your dog may have a digestive problem such as gastritis or inflammatory bowel disease, or a malabsorption issue which can lead to undigested food in the stomach and therefore bad breath. In either case, they’ll need to be assessed by a vet. We look further at what foods cause bad breath in dogs below. What foods cause bad breath in dogs?Frequent or extreme dog bad breath may be a sign of health issues, so the first thing you should do when you smell very strong odors from your dog's mouth is to take him to the vet and let them examine his teeth. If they notice major tartar buildup, red and irritated gums or excessive drooling that could be a sign of a larger dental diseases, like gingivitis. Systemic disease, like diabetes, liver disease or kidney disease, could be the culprit, notes the American Kennel Club.

Whimzees chews are all-natural, non-GMO, vegetarian dental chews. Available in three fun shapes, they help clean away plaque and freshen breath, and are ideal for dogs with food allergies or sensitivities. Why We Love It: Although other formulas that contain things such as mint can be beneficial, the ingredients above are the most effective and important elements in a bad breath fighting treat. Best case scenario, your pal’s chew should contain a combination of the essential ingredients plus a tartar fighting design. Tips When ShoppingHow many homemade dog treats should you give your dog at once? That depends on your dog’s size and what else they ate that day. This might be one of the best dog breath treats, but it is still a treat. It’s not just the ingredients that are important; the shape, strength, and texture of the treat are vital, as this is what will help to clean your dog’s teeth as they chew. Look for treats that have a raised texture or uneven texture specifically. Correct Size for Your Dog One in 10 dogs will develop kidney disease in their lifetime and one of the chronic signs is bad breath with a chemical odour. The toxins that build up in the blood can be emitted on the breath, coming up from the lungs through the mouth. Other signs of kidney disease include increased thirst and urination so if this is something you have noticed in your dog, you should get him seen by a vet as soon as possible. Treating dental disease