Coffee & caffeine — Food safety facts
Do not feed · Dogs · full breakdown on the linked food page
Toxic. Caffeine overstimulates the heart and nervous system — vomiting, tremors, seizures and even death at high doses.
Dogs and cats carry the same rating (Do not feed), so the notes below hold for either pet.
Coffee & caffeine should not be given to dogs at all. Even a small amount can do harm, so there is no portion small enough to be safe.
Do not induce vomiting and do not give milk or oil to “dilute” it. Note the food and roughly how much was eaten, then call your vet or a pet poison hotline and follow their advice on whether to bring the pet in straight away.
Why these cautions matter
Caffeine overstimulates the heart and nervous system, and pets clear it so slowly that tremors and restlessness drag on far longer than they would in a person.
The full verdict, portion guidance and serving notes are collected on the Coffee & caffeine food facts page.