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| Safe? | Yes, plain bread as a treat |
| How much | A piece about the size of your rat's ear |
| How often | Once a week at most |
| Best served | Dry or toasted, plain, wholemeal |
| Watch out for | Raisins, garlic, sugar, spreads, spoiled bread |
Is bread good for rats?
Bread is safe but not especially good for rats. It is mostly starch, with a little fibre in wholemeal loaves, so it fills a rat up without adding much their complete pellets do not already give. Woodgreen, the UK animal charity, lists dry bread among the treats it suggests a few times a week, while the vet-reviewed Vet Desk is stricter and says bread, like most treats, should be offered only on rare occasions. Eaten often, it is an easy way to make a rat overweight, and rats put on weight readily.
How much bread can a rat have?
A piece about the size of your rat's ear, once a week at most. That is roughly a 1 cm (half an inch) cube of a normal slice. Where the two sources differ, we lean to the stricter side, as bread adds little a complete pellet does not. Count it as part of the day's food, not an extra on top. If you are also giving other starchy treats such as cooked rice or Weetabix, give bread on a different day.
Which kinds of bread are safe for rats?
| Bread | OK for rats? | Why |
|---|---|---|
| Plain wholemeal (whole wheat) | Yes, as a treat | More fibre, less sugar than most white loaves |
| Plain white | Yes, now and then | Mostly starch; check the label for added sugar |
| Toast, plain | Yes, best choice | Dry and crisp, so it is less likely to clump |
| Plain seeded or sourdough | Yes, small piece | Fine if there is no garlic, onion or sugar |
| Raisin, fruit or chocolate bread | No | Raisins and chocolate are harmful to rats |
| Garlic or onion bread | No | Garlic and onion are on the harmful list |
| Buttered bread or with spreads | No | High fat; sticky spreads add choking risk |
| Bread that has gone off | No | Fuzzy damp growth can make rats ill |
How to prepare bread for rats
- Pick a plain loaf. Wholemeal with no added sugar, garlic, onion or fruit.
- Dry or toast it. Leave a slice out to go stale or toast it lightly with nothing on it.
- Cut small. Break off a piece about the size of your rat's ear for each rat.
- Watch the first time. See how your rat eats it, then clear crumbs from the cage within a few hours.
What to offer instead
The complete list of safe foods is in what can rats eat, and the daily balance is in our rat diet guide. For everything else, start at our pet rat care hub.
Bread questions
Can rats eat white bread?
Plain white bread is not harmful, but it is mostly starch with less fibre than wholemeal, and many supermarket loaves have added sugar. A small dry or toasted piece now and then is fine. If you have the choice, wholemeal or a plain seeded loaf without added sugar is the better pick.
Can rats eat stale bread?
Dry, stale bread is fine and is actually safer than soft, fresh bread because it is less likely to clump in the throat. What rats must never have is spoiled bread with any fuzzy or coloured damp growth on it. If any part of the loaf has gone off, bin the whole slice.
Can rats eat garlic bread or raisin bread?
No. Garlic is on the harmful list from rat charities and exotic vets, and raisins (dried grapes) are on it too. Also skip chocolate brioche, fruit loaves, iced buns and anything spread with butter or margarine. If a rat has stolen a bite, watch for low energy, diarrhoea or not eating and call a vet if you see any of them.
Can baby rats eat bread?
Young rats, called kittens, can have a crumb-sized piece of dry or toasted bread once they are fully weaned and eating solid food well. Their stomachs are small, so a piece the size of a pea is plenty, and their main food should be a complete rat pellet or block.
