Food safety · 2 min read

Can cats eat Caffeine (coffee, tea, energy drinks)?

No — dangerous

No. Caffeine is a stimulant that cats metabolise poorly. Coffee, tea, energy drinks, cola, and caffeine tablets are all dangerous.

If your cat has just eaten caffeine (coffee, tea, energy drinks)

  1. Note what was consumed and roughly how much.
  2. Call your vet immediately. Caffeine acts fast.
  3. If you can't reach your vet, call Animal PoisonLine (01202 509000) — paid triage, 24/7.
  4. Do not give coffee, food, or water in an attempt to 'neutralise' it.

What's the full picture?

Caffeine acts on the heart and central nervous system. Cats are substantially more sensitive to caffeine than humans, and even a small ingestion can cause restlessness, rapid heart rate, vomiting, and in severe cases tremors, seizures, and cardiac arrhythmias.

The most dangerous caffeine exposures are energy drinks and caffeine tablets (e.g. Pro Plus, workout pre-workout powders). Coffee grounds and tea bags — especially used ones left in compost or bins — are a common household exposure route.

Chocolate also contains caffeine alongside theobromine, which contributes to chocolate's overall toxicity.

Symptoms to watch for

30–60 minutes
Restlessness, vomiting, rapid breathing, hyperactivity.
1–4 hours
Rapid heart rate, tremors, elevated temperature, high blood pressure.
4–12 hours
Seizures, arrhythmias, collapse in severe cases.

Hidden sources you might not think of

  • Coffee grounds and used coffee pods
  • Tea bags (used or unused)
  • Energy drinks (Red Bull, Monster, Relentless)
  • Caffeine tablets (Pro Plus)
  • Pre-workout powders
  • Chocolate (also contains caffeine)

Safer alternatives

  • Fresh water is the only drink cats need

Questions owners ask

My cat licked coffee — is that a problem?

A small lick of a weak latte is low risk, but espresso, strong coffee, or energy drinks are immediate vet territory. Size and strength matter.

If you're worried right now

Call your vet or out-of-hours emergency vet first. For poison advice, the Animal PoisonLine (UK) is on 01202 509000 — 24/7, charges apply. Your vet can also call the Veterinary Poisons Information Service (VPIS) directly.

ADHD medications (methylphenidate, amphetamines) no Black tea / tea bags no Cannabis / CBD / edibles no Chocolate no Cocoa powder no Coffee grounds no Dark chocolate no Energy drinks no Pseudoephedrine (Sudafed) no

About this guidance

Every entry on this site is compiled from published UK veterinary toxicology sources — International Cat Care, Veterinary Poisons Information Service (VPIS) references, RCVS-registered practice materials, and peer-reviewed feline medicine literature. Where the evidence is mixed, we err on the cautious side because cats are unusually sensitive to many common substances that are harmless to humans and even to dogs.

This is general information written for UK cat owners. It is not personalised veterinary advice for your specific cat, their age, weight, medical history, or the exact exposure you're dealing with. If your cat has eaten something or is unwell, call your vet first. The Animal PoisonLine on 01202 509000 is available 24/7 for a small fee and can tell you whether an emergency visit is needed.

Entries are reviewed and updated as new research emerges. Spotted an error? Let us know — corrections are investigated and applied within 24 hours. For more context on how we work, see about and our full disclaimer.

Last reviewed: · By the What Can My Cat Eat? editorial team

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