Hides and houses
Shelves and ledges
Foraging and toys
Cage accessories
Kits and bundles
Fairy forest
Spooky mischief
Sweetie stash
Game mode
Forest floor
Castles and cathedrals
No, guinea pigs must never eat chocolate. It contains theobromine and caffeine, which the Pet Poison Helpline says are toxic to pets, and Burgess calls chocolate particularly dangerous for guinea pigs. Dark chocolate and cocoa are the worst. If your guinea pig has eaten any, take the rest away and ring your vet straight away.
| Safe? | No, toxic |
| How much | None |
| How often | Never |
| If eaten | Ring your vet now, even for a small amount |
| Watch out for | Restlessness, fast breathing, tremors, diarrhoea |
Why is chocolate dangerous for guinea pigs?
Chocolate contains methylxanthines, mainly theobromine and caffeine, according to the Pet Poison Helpline. The ASPCA says these can cause diarrhoea, panting, more thirst, restlessness, an abnormal heart rhythm, tremors, seizures and, in the worst cases, death in pets. Most of that advice is written with dogs in mind, and no source we use gives a safe amount for guinea pigs. We go by the general rule for pets, because a guinea pig weighs so little that even a small piece is a large dose for its size.
Chocolate brings other problems too. It is full of sugar and fat, and milk chocolate adds dairy, which Burgess also calls particularly dangerous. Guinea pigs can't vomit, as the Vet Desk notes, so whatever they swallow has to pass all the way through.
Which chocolate is worst?
| Type | Risk | Why |
|---|---|---|
| Cocoa powder, baking chocolate | Highest | The ASPCA says these have the most methylxanthines |
| Dark chocolate | High | Darker chocolate carries more theobromine and caffeine |
| Milk chocolate | Still dangerous | Less theobromine, plus dairy and sugar |
| White chocolate | Lowest toxin, still a no | Mostly sugar, fat and milk |
My guinea pig ate chocolate: what do I do?
- Take it away. Remove any chocolate and wrappers within reach.
- Work out what and how much. Keep the wrapper so you can tell the vet the type and roughly how much is missing.
- Ring your vet now. Guinea Lynx says to contact your vet straight away if you suspect poisoning. Out of hours, ring your local emergency vet. In the US, ASPCA Animal Poison Control is on (888) 426-4435.
- Don't try home remedies. Don't give salt water, milk or anything else to make it come up. Guinea pigs can't vomit.
- Keep them warm and quiet. Offer hay and water while you get advice, and follow what the vet tells you.
Don't wait for signs. In a small animal, signs can be hard to see until things are serious. Ring first and let your vet decide whether your guinea pig needs to come in.
Keeping chocolate out of reach
- No chocolate in the room during floor time
- Bags, coats and handbags off the floor
- Advent calendars, Easter eggs and selection boxes stored up high
- Children reminded not to share their snacks
- Cocoa powder and baking chocolate kept in a closed cupboard
What to give instead
For a treat they'll love, try a strip of bell pepper or a strawberry half. Other human snacks are no as well: see peanut butter, popcorn and cheese. Our guinea pig health guide, what can guinea pigs eat and the guinea pig care guide cover the rest.
Chocolate questions
How much chocolate is toxic to a guinea pig?
No welfare or vet source we use gives a safe or toxic amount for guinea pigs. The Pet Poison Helpline says the risk depends on the type and amount of chocolate and the size of the pet, and a guinea pig weighs very little. So treat any amount as a reason to ring your vet.
Is white chocolate safe for guinea pigs?
No. The ASPCA says white chocolate has the least of the harmful compounds, but it is still mostly sugar, fat and milk. Burgess calls both dairy and chocolate particularly dangerous for guinea pigs. Ring your vet for advice if your guinea pig has eaten some.
Can guinea pigs have chocolate-flavoured treats or cereal?
No. Chocolate cereals, biscuits, cakes and drinks all contain cocoa as well as sugar and starch, none of which suit a guinea pig. If any was eaten, tell your vet what it was and how much, ideally with the packet in hand.
What are the signs of chocolate poisoning?
The ASPCA lists diarrhoea, panting, more thirst and weeing, restlessness, an abnormal heart rhythm, tremors and seizures in pets. Guinea pigs can't vomit, so you won't see that. Signs can be hard to spot in a small, quiet animal, so ring your vet before they appear.
