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Pet Bad Breath: Food-Related & Health Causes
Sudden, unusually bad breath can come from dental disease, GI issues, kidney problems, or recently eaten foods (especially fish/garlic).
Severity: mild
Schedule a dental check-up. Sweet/fruity breath in cats can signal diabetes — that's urgent.
Understanding sudden bad breath
Persistent halitosis is most often dental — about 80% of dogs over age 3 have dental disease.
Home care
Daily tooth brushing prevents most cases. Dental chews help between cleanings.
Emergency contacts
ASPCA Animal Poison Control: 888-426-4435
Pet Poison Helpline: 855-764-7661
Both are 24/7 — small consultation fee may apply.
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