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.
Brief Answer
Caffeinated tea (black, green, oolong) is harmful to dogs due to caffeine and theobromine content. However, small amounts of cooled, diluted caffeine-free herbal tea (such as chamomile or peppermint) are generally safe and may help soothe mild stomach upset.
The Full Picture
Caffeinated teas (black, green, oolong, white) contain caffeine and theobromine, both of which are toxic to dogs. Even moderate amounts can cause restlessness, rapid breathing, heart palpitations, muscle tremors, and seizures. In severe cases, caffeine toxicity can be fatal. Dogs are far more sensitive to caffeine than humans. If your dog drinks caffeinated tea, contact your veterinarian immediately. Caffeine-free herbal teas such as chamomile or peppermint, served cooled and plain in very small amounts, are generally not harmful — but there is little reason to offer them. Never add milk, sugar, or sweeteners, especially xylitol, which is extremely toxic to dogs.
Signs to Watch For
- Restlessness and hyperactivity from caffeine
- Rapid breathing and heart palpitations
- Muscle tremors and twitching
- Vomiting and diarrhoea
- Seizures in severe caffeine toxicity
If your dog drinks a significant amount of caffeinated tea, particularly strong tea or tea leaves/bags, contact your vet. Provide details of the type of tea and the estimated amount consumed.
What You Should Know
Tea should be kept well away from dogs. If your dog has drunk tea, watch for symptoms such as vomiting, diarrhoea, lethargy, or loss of appetite. In an emergency, contact your veterinarian or an animal poison helpline straight away.