Verdict: No, toxic
Coffee is highly toxic to dogs due to its caffeine content. Even small amounts can cause significant health issues, and large ingestions can be fatal. Immediate veterinary attention is crucial if a dog consumes coffee or coffee products.
Caffeine acts as a stimulant, affecting the central nervous system and heart. It inhibits adenosine receptors, leading to increased neurotransmitter release, and also inhibits phosphodiesterase, increasing intracellular cAMP levels.
Caffeine