Every dog is different. Individual allergies and sensitivities are common — always introduce new foods in small amounts and watch for adverse reactions. This site is for informational purposes only and is not veterinary advice. Always consult your vet.
The Full Picture
Kombucha should not be given to dogs. Although it is marketed as a health drink for humans, it poses several risks to dogs. Kombucha contains caffeine (from the tea base), which is toxic to dogs. The fermentation process also produces small amounts of alcohol, which dogs metabolise poorly and which can cause intoxication even in tiny doses. The high acidity of kombucha can irritate a dog's stomach and cause gastrointestinal upset. Additionally, many commercial kombuchas contain added sugars, flavourings, or artificial sweeteners that are harmful to dogs. The probiotic benefits that humans may gain from kombucha can be more safely provided to dogs through vet-recommended probiotic supplements.
What You Should Know
Kombucha should be kept well away from dogs. If your dog has drunk kombucha, watch for symptoms such as vomiting, diarrhea, lethargy, or loss of appetite. In an emergency, contact your veterinarian or an animal poison helpline straight away.