Can dogs eat crisps?
Updated 5 August 2026
No. One dropped crisp is nothing to worry about, but crisps are salt and fried fat in a form dogs will happily overeat, and many flavourings contain onion or garlic powder, both toxic to dogs. The bag, especially the sharing bag, is the thing to keep out of reach.
If your dog has eaten crisps
For a few plain crisps, fresh water is the only action needed. For a whole bag, note the size and flavour: onion or garlic flavours, or a small dog, mean a call to your vet. Out of hours, call Vets Now or the Animal PoisonLine on 01202 509000.
The detail
Crisps fail a dog on three counts: salt, fat and flavourings. A standard 25g bag of ready salted holds around 0.3g of salt, which is not dangerous on its own, but crisps rarely stop at one and the fried fat comes along with every handful.
The flavourings are the part most owners miss. Cheese and onion, prawn cocktail and sour cream and onion seasonings usually include onion or garlic powder, and VCA Animal Hospitals notes that dried and powdered forms of the onion family are more concentrated than fresh.
So the honest picture is a sliding scale. A dropped ready salted crisp is a shrug, a shared bag is a bad habit, and a stolen sharing bag of a flavoured variety is worth a phone call.
Risk by crisp type
| Ready salted, one dropped crisp | A shrugAround 0.3g of salt in a whole 25g bag |
| Cheese and onion, prawn cocktail, sour cream and onion | Flavourings usually include onion or garlic powderPowdered onion is more concentrated than fresh |
| Wotsits, Quavers and other corn puffs | Airy but flavour-dusted, salt plus dairy seasoning |
| A 150g sharing bag, stolen | Around 2g of salt plus the fatVet call for small dogs or any onion flavour |
Can dogs eat Wotsits or Quavers?
One escaped puff is harmless, which is fortunate because they bounce. Wotsits and Quavers are airy corn and potato snacks, so each piece carries less salt than a fried crisp, but the cheese flavour dust still adds salt and dairy seasoning a dog does not need.
The honest problem is quantity. A whole packet fed puff by puff to a begging dog is a salty, fatty snack habit, so treat the odd dropped one as the ceiling.
Can dogs eat Pringles?
No. Pringles are heavily seasoned, and the popular sour cream and onion tube lists onion powder, which puts them in the onion-toxicity conversation rather than just the salt one.
The tube format also means quantity: a dog that gets into one tends to finish it. Ring your vet if that happens, with the flavour and a guess at how much went.
Cheese and onion, prawn cocktail and other flavoured crisps
Flavoured crisps are where the risk genuinely rises. The seasoning on most savoury UK flavours includes onion or garlic powder, and powdered onion is stronger gram for gram than fresh onion.
A couple of stolen crisps will not deliver a harmful onion dose to a medium dog. A small dog through a big bag is a different sum, and signs of onion poisoning can take days to show, so phone rather than wait.
What about plain ready salted crisps?
The least bad crisp, honestly told. Ready salted carries no onion powder, so the question is just salt and fried fat, and one crisp is well below any harmful line.
It is still a fried, salted potato with nothing a dog needs. If your dog loves the crunch, a carrot stick does the same job for nothing.
My dog ate a whole bag of crisps. What should I do?
First check the flavour. A 150g sharing bag of ready salted holds around 2g of salt, which for most dogs means serious thirst and possibly an upset stomach rather than an emergency, so put water down and watch.
If the bag was an onion or garlic flavour, or your dog is small, ring your vet with the bag size and flavour. The Animal PoisonLine on 01202 509000 can also advise out of hours.
Signs to watch for
- Excessive thirst after a salty raid
- Vomiting or diarrhoea
- After onion-flavoured crisps: lethargy, pale gums or weakness in the following days
Common questions
My dog ate one crisp off the floor. Is that a problem?
No. One crisp of any flavour is far below a harmful amount for any dog. Carry on with your day.
My dog ate cheese and onion crisps. Should I call the vet?
For a couple of crisps, no. For a full bag, yes, because the seasoning contains onion powder and signs of onion poisoning can take days to appear. Have the bag size and your dog's weight ready.
Are salt and vinegar crisps toxic to dogs?
Not toxic, just salty and acidic enough to upset a stomach. Most salt and vinegar seasonings skip the onion powder, so a stolen few means water and watching rather than a vet call.
Can dogs have low-salt or lightly salted crisps?
They are still fried potato with nothing a dog needs. Nothing bad happens after one, but a carrot stick or a bit of plain rice cake is the better crunch.
My puppy ate some crisps. Is that worse?
Yes, in proportion. A puppy's small body means the same crisps are a bigger relative salt dose, and flavoured varieties raise the onion question sooner. Ring your vet if a puppy has eaten more than a stray crisp or two.
Why does my dog want crisps so badly?
Salt and fat are exactly what a scavenger's nose is tuned for, and the rustle of the bag is the best doorbell in the house. Wanting them is normal; getting them should stay rare and accidental.