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| Safe? | With care, as a thin smear |
| How much | A see-through layer on a small cracker |
| How often | Once a week at most |
| Best served | Smooth, spread thin on toast or cracker |
| Watch out for | Choking, fat, added salt and sugar |
Is peanut butter safe for rats?
Peanut butter is safe to eat but risky to serve. The problem is the texture. The Rat and Mouse Club of America's choking notes name peanut butter as "the most common culprit", and the RSPCA in Australia tells owners to avoid sticky foods for rats because of choking. Rats also cannot vomit, so they cannot bring a stuck lump back up.
The second problem is fat. Peanuts are rich, and Woodgreen, the UK animal charity, only puts peanuts in a rat's mix in small amounts for that reason. Peanut butter is peanuts with the water taken out, so a little goes a long way.
How much peanut butter can a rat have?
A layer thin enough to see through, on a cracker or piece of toast about the size of your rat's ear, no more than once a week. Never a blob on a spoon or a lick off your finger. If your rats are overweight, skip it altogether.
How to give peanut butter safely
- Read the label. Choose smooth peanut butter that is just peanuts, with no added salt, sugar, palm oil or sweeteners.
- Use a base. Take a small piece of plain toast or an unsalted cracker.
- Spread it thin. Scrape on a layer you can see the toast through, with no ridges or lumps.
- Keep water close. Make sure the water bottle is full and working, and stay nearby while they eat it.
Peanut butter types and spreads
| Spread | OK for rats? |
|---|---|
| Smooth, 100% peanuts | Thin smear, rarely |
| Crunchy, 100% peanuts | Less good: hard bits in a sticky paste |
| Salted or sweetened peanut butter | No |
| Any spread with xylitol (birch sugar) | Never |
| Chocolate spreads and Nutella | No: chocolate is harmful to rats |
| Peanut butter biscuits and cookies | No: sugar, and a known choking risk |
What to offer instead
A single whole peanut in its shell gives the same taste plus a job to do, with no choking risk from paste. Other rich treats to keep small are almonds and sunflower seeds. For something lighter, try a piece of plain toast. The complete list is in what can rats eat, the daily balance is in our rat diet guide, and everything else is in our pet rat care hub.
Peanut butter questions
Can rats choke on peanut butter?
Yes. The Rat and Mouse Club of America calls peanut butter the most common cause of choking it hears about. Rats cannot vomit, so a sticky lump that catches in the throat has to work its way down. Only ever offer a thin smear, never a blob on a spoon or a finger.
Is crunchy or smooth peanut butter better for rats?
Smooth spreads more thinly, which is what makes peanut butter safer, so it is the better choice. Crunchy adds hard nut pieces to a sticky paste. Whichever you use, pick one that is just peanuts, with no added salt, sugar, palm oil or sweeteners, and keep the layer thin.
Can I use peanut butter to give my rat medicine?
Many owners do, and a thin smear can help a dose go down. Ask your vet first, because some medicines should not be mixed with food. Use the smallest amount that hides the taste and spread it thinly on a cracker or a piece of toast rather than serving a blob.
What should I do if my rat is choking on peanut butter?
First check the rat can breathe. A rat that is drooling and gagging, chin pulled to its throat and ears flat, but still breathing, usually clears it within one to four hours. Keep it quiet and check often. If it cannot breathe, goes limp or is still struggling, go to a vet at once.