- Grounds, pills & energy drinks are worst
- Signs in 1–2 h
- Affects: Heart & nervous system
Why this verdict for cats
Caffeine over-stimulates a cat’s heart and nervous system. Keep all coffee and tea well out of reach.
Warning signs to watch for
- Restlessness
- Rapid heart rate
⚠ If your cat ate coffee & caffeine
Act immediately — don't wait for symptoms.
- Call your vet or a pet poison helpline right away.
- Note how much was eaten and when.
- Do not induce vomiting unless a professional tells you to.
Coffee, tea, energy drinks, soda — and even the grounds and used pods — all contain caffeine, a stimulant dogs and cats are far more sensitive to than we are.
How much is safe?
A lap of weak milky coffee is usually low-risk, but the concentrated sources are the real danger: coffee grounds, used pods, tea bags, caffeine pills and energy drinks deliver a big dose to a small body. There's no safe 'treat' amount.
What happens if a cat eats too much?
Signs often start within 1–2 hours: restlessness and hyperactivity, a racing heart, panting, tremors and, in larger doses, seizures.
⚠ What to do if your cat ate coffee & caffeine
Call your vet or a poison line right away (ASPCA 888-426-4435 · Pet Poison Helpline 855-764-7661). Say the source (grounds, pills, energy drink) and roughly how much — pills and energy drinks are the most dangerous.
⚠️ Worried your pet got into this?
Frequently asked questions
My dog licked some coffee — is that bad?
A small lick of milky coffee is usually low-risk, but call a poison line with your dog's weight to be sure, and keep grounds and pods well out of reach.
Are coffee grounds dangerous?
Yes — grounds and used pods are concentrated and a common cause of poisoning. Empty them straight into a closed bin.
Is tea ok for pets?
Tea also contains caffeine, so it's best kept away — especially strong or multiple bags.
More drinks for cats
By the CanMyPet Editorial Team · Reviewed against ASPCA Animal Poison Control, the American Kennel Club (AKC) and Pet Poison Helpline · Last updated July 31, 2026.
Sources
- ASPCA — People Foods to Avoid Feeding Your Pets
- American Kennel Club — Dog Nutrition
- Pet Poison Helpline — Poison List