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No, guinea pigs should not eat crackers. Crackers are dry, starchy human food, usually with added salt, fat and flavourings, and Burgess names them as a food that can cause digestive problems. A guinea pig's gut is built for hay and grass. If yours has stolen a corner, it is rarely an emergency, but don't offer them.
| Safe? | No |
| How much | None |
| How often | Never |
| Best served | Not at all: give a strip of bell pepper instead |
| Watch out for | Loose droppings, bloating, eating less |
Why can't guinea pigs eat crackers?
Because almost nothing in a cracker suits a guinea pig. Guinea pigs are strict plant-eaters whose diet should be 85 to 90% hay and grass, according to the PDSA. Their gut runs on fibre and a careful balance of bacteria.
Crackers are the opposite: refined flour, oil and salt, with very little fibre. Burgess lists high-carb bread, pasta and crackers among the human foods to avoid because they can cause digestive problems, and VCA advises against oats and dry cereals because they are high in carbohydrate and fat. A sudden load of starch can upset the gut bacteria, which can lead to gas, soft droppings or worse.
There are other problems too. Crackers give no vitamin C, which guinea pigs must get from food every day. Flavoured types often include onion, garlic or cheese, and the PDSA lists onion and garlic as foods guinea pigs must avoid, while Burgess calls dairy particularly dangerous.
What if my guinea pig has already eaten a cracker?
- Take the rest away. Check the cage for crumbs or hidden pieces.
- Check the label. Note whether it had onion, garlic, cheese, chocolate or a lot of salt, and roughly how much was eaten.
- Offer hay and water. Plenty of fresh hay helps keep the gut moving.
- Watch for 24 hours. Look for eating less, smaller or softer droppings, a hunched posture or a swollen belly.
- Ring your vet if anything changes. The PDSA says to call promptly if a guinea pig stops eating or has severe diarrhoea. Ring straight away if the cracker was flavoured with onion, garlic, cheese or chocolate.
A corner of a plain cracker is unlikely to cause real harm in a healthy adult. A whole flavoured cracker, or a small or unwell guinea pig, is worth a call to the vet for advice.
Flavoured crackers, crispbreads and "guinea pig crackers"
- Salted, cheese or onion crackers: no, and the most worrying kind.
- Plain or unsalted crackers: still no.
- Rice cakes, crispbread and oatcakes: no, for the same reasons.
- Pet-shop "crackers" and sticks: check the label. Many are bound with honey, seeds or cereal, which Woodgreen and the PDSA both warn against.
What to give instead
If you want a crunchy treat, a strip of bell pepper or a stick of celery beats any cracker and brings vitamin C. Our pages on bread and Cheerios explain why other grain snacks are a no. For the full picture, read what can guinea pigs eat, our guinea pig diet guide and the guinea pig care guide.
Cracker questions
Can guinea pigs eat plain or unsalted crackers?
No. Taking the salt away still leaves a dry block of refined flour and fat. Burgess names crackers alongside bread and pasta as high-carb human foods that can cause digestive problems, and that is true of the plain kind too. A slice of bell pepper is a better crunchy treat.
Can guinea pigs eat rice cakes or crispbread?
No. Rice cakes, crispbreads and oatcakes are all dry, starchy grain snacks. VCA advises against oats and dry cereals for guinea pigs because they are high in carbohydrate, and these are the same thing pressed into a biscuit. Stick to hay, greens and guinea pig pellets.
My guinea pig ate a cracker. What should I do?
Don't panic. Take away anything left, offer plenty of hay and fresh water, and keep an eye on eating and droppings for the next day. Ring your vet if your guinea pig stops eating, has diarrhoea, or the cracker had onion, garlic, cheese or chocolate in it.
Are crackers made for guinea pigs okay?
Be wary of them. Many pet-shop crackers, sticks and drops are bound with honey, seeds or cereals. PDSA advises avoiding sugary shop-bought treats, and Woodgreen warns against sticky honey-based treats. Read the label, and if it lists sugar, honey, seeds or grains near the top, leave it on the shelf.
