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No, do not feed dog food to your hamster. A vet-reviewed guide from The Vet Desk says most dog food is not toxic to hamsters, but it carries far more fat and protein, and much less fibre, than a hamster needs, in both wet and dry forms. If your hamster has nibbled a piece of the dog's kibble, they should be fine. Just do not make it a habit.
| Safe? | Not toxic, but not suitable |
| How much | None on purpose |
| How often | Never |
| Best served | Not at all: offer a cricket or boiled egg instead |
| Watch out for | Diarrhoea, weight gain, wet food stuck in pouches |
Is dog food safe for hamsters?
It will not poison them, but it is the wrong shape of diet. The Vet Desk explains that a hamster food should have no more than about 15 to 20% protein, while adult dog food has at least 18% and puppy food at least 22%. Dog food is also higher in fat and lower in fibre than a hamster's grains, seeds and vegetables. Over time that adds up to weight gain and digestive trouble.
The Vet Desk allows one small piece of kibble once or twice a week. We take the more careful line: there is no reason to feed it, because a good hamster food covers their protein and safer treats exist.
What about dog biscuits?
Sources differ here. Woodgreen, a UK animal charity, lists plain dog biscuits such as Gravy Bones, broken into small pieces, among hamster treats, as something hard to gnaw. Burgess, a vet-led food maker, says to avoid biscuits for hamsters, and The Vet Desk does not cover them. Dog biscuits vary a lot in salt, fat and flavourings, and none are made for hamsters, so we would choose a hamster chew or a piece of apple wood for gnawing instead. See our page on biscuits for more.
Wet food, puppy food and dog treats
- Dry adult kibble: no, though a stolen piece is not a worry.
- Wet dog food: no. The RSPCA warns wet food goes off fast in a hamster cage, and sticky food can lodge in cheek pouches.
- Puppy food: no. Even more protein.
- Chews, jerky and flavoured treats: no. Often salty or seasoned, which Woodgreen and Bunnyjackpot warn against.
My hamster ate dog food. What now?
Take away any more, check the cheek pouches and the hoard, and give fresh water and normal food. Watch for diarrhoea, a wet bottom, a swollen cheek, low energy or not eating over the next two days, and ring your vet the same day if you see any of them. If the dog food had grapes, onion or garlic in it, ring your vet straight away.
What to offer instead
For protein, one or two pet-shop crickets or a small piece of plain boiled egg are what the PDSA and Woodgreen suggest. Cat food is no better than dog food. Our hamster diet guide shows a normal day, what can hamsters eat lists safe foods, and our hamster care guide covers the rest.
Dog food questions
Can I give my hamster dog food in an emergency?
We would not. Your hamster's own food stash usually lasts a night or two, and plain safe foods such as a little broccoli, cucumber or plain boiled egg are closer to what they need. Get proper hamster food as soon as you can.
How much protein does a hamster need?
The Vet Desk puts it at roughly 15 to 20% of the diet, which a good complete hamster food already provides. Extra protein should be a small treat, such as one or two mealworms or crickets, or a little boiled egg, not dog or cat food.
Can hamsters eat Gravy Bones?
Woodgreen lists plain dog biscuits like Gravy Bones, broken small, as an occasional hamster treat. Other sources say to avoid biscuits. If you do give one, a small piece now and then is the limit, but a wooden chew made for hamsters does the same gnawing job without the salt and fat.
