Energy drinks — Food safety facts
Do not feed · Dogs · full breakdown on the linked food page
Caffeine, taurine and sugar together — a cardiac emergency in small pets.
Short answer
Yes, energy drinks are more dangerous due to the combined caffeine, taurine, and sugar. While coffee is already toxic, energy drinks amplify the risk of rapid heart failure, especially in small dogs. Never let your dog consume either, but prioritize keeping energy drinks completely inaccessible. If ingested, treat it as an emergency and call your vet immediately.