Can cats eat coffee & caffeine?

Q: Can cats eat coffee & caffeine?

The caffeine in one espresso shot is a toxic dose for a 4 kg cat. Caffeine is a methylxanthine like chocolate and overstimulates the heart and nerves. Signs can begin around 20 mg/kg, and one espresso shot (30 mL) holds about 60–70 mg. Beans, grounds, tea bags, energy drinks and caffeine pills are even more concentrated.

If your cat ate it

Signs: Restlessness, racing heart, tremors, vomiting, high temperature, seizures
When: Within 1–2 hours
What to do now: Go to a vet now and say what and how much (beans, grounds, drink).

Don't — and don't leave a cup unattended.

Why

Caffeine is a methylxanthine like chocolate and overstimulates the heart and nerves. Signs can begin around 20 mg/kg, and one espresso shot (30 mL) holds about 60–70 mg. Beans, grounds, tea bags, energy drinks and caffeine pills are even more concentrated.

If your cat has a condition

Dangerous for every cat, with or without a health condition.

Nutrition per 100 g

Nutrients per 100 g, with phosphorus also shown per 1000 kcal
Calories	22 kcal
Protein	0.2 g
Fat	0.22 g
Carbohydrate	4.93 g
Phosphorus	19 mg 864 mg/1000kcal
Sodium	1 mg
Potassium	443 mg

Source: Korea MFDS Food Nutrient Database — 커피_원두_에스프레소_용액

SourcesReviewed 2026-10-24

Merck Veterinary Manual — Chocolate (methylxanthine) toxicosis in animals
ASPCA Animal Poison Control — People Foods to Avoid Feeding Your Pets

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