Yes, a few. Plain cashews are generally safe for dogs and, unlike macadamia nuts, not toxic, says the American Kennel Club. They are rich and fatty, though, so the AKC's advice is to give only a few at a time, shelled and unsalted.
If your dog grabbed a cashew or two and is acting normally, there is nothing to do but keep an eye on them. If they got into a whole bag, a tin of mixed nuts, or chocolate or salted cashews, read the next section before anything else.
Key takeaways
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- Plain, shelled, unsalted cashews are not poisonous to dogs.
- They are high in fat and calories, so one or a few is the whole treat.
- A big helping can cause vomiting or diarrhea, and fatty food can bring on pancreatitis.
- Mixed nuts may hide macadamias, which are toxic to dogs.
- Salted, seasoned, chocolate and sugar-free cashew products each carry their own risk.
My dog ate cashews: what to do
First, move the bag or bowl out of reach. Then look at what it actually was.
Tap or hover a row to highlight it.
| What they ate | What to do |
|---|---|
| What they ateOne or a few plain cashews | What to doWatch at home for vomiting, diarrhea or a sore belly over the next day or two. |
| What they ateA handful or more of plain cashews | What to doCall your vet, especially for a small dog or one that has had pancreatitis. |
| What they ateSalted or seasoned cashews | What to doCall your vet. Salt adds its own danger, and seasoning blends can include onion or garlic. |
| What they ateMixed nuts or trail mix | What to doLook for macadamia nuts and raisins. If either was in the mix, call now. |
| What they ateChocolate-covered cashews | What to doCall now, with the package. |
| What they ateCashew butter, milk or a sugar-free cashew snack | What to doCheck the label for xylitol or chocolate, and call now if either is listed. |
| What they ateCashews still in the shell | What to doCall your vet. The shell holds an irritating liquid. |
When a product might be harmful, the ASPCA says not to wait for signs to get worse before getting help, even if your dog seems fine so far. Keep the package, and know your dog's weight and roughly how many were eaten.
Go to an emergency vet now if your dog is choking, struggling to breathe, collapses, has a seizure, or is vomiting over and over.
Which cashews and cashew foods are okay
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| Form | Okay for dogs? | Why |
|---|---|---|
| FormPlain shelled cashew, raw-labeled or dry roasted | Okay for dogs?Yes, a few | WhyNot toxic; the concern is fat and calories |
| FormSalted cashews | Okay for dogs?No | WhyToo much salt can make a dog sick |
| FormHoney-roasted, spiced or flavored | Okay for dogs?No | WhySugar, salt, and seasonings that may include onion or garlic |
| FormChocolate-covered | Okay for dogs?No | WhyChocolate is toxic to dogs |
| FormMixed nuts and trail mix | Okay for dogs?No | WhyMay contain macadamias or raisins |
| FormCashew butter | Okay for dogs?Only if plain | WhyVery fatty; some nut butters contain xylitol |
| FormCashew milk | Okay for dogs?Not needed | WhyBrands vary; check for sugar, salt, chocolate and sweeteners |
| FormCashew in its natural shell | Okay for dogs?No | WhyThe shell contains an irritant liquid |
The cashews sold in stores, even the bags labeled "raw," have been processed to get the kernel out of its shell. That matters because the shell contains cashew nut shell liquid, an irritant described by the USDA Agricultural Research Service. A whole cashew still in its natural shell, from a tree or a specialty import, is a different thing from the nut in your snack bowl.
How many cashews can a dog have?
The AKC says one now and again is unlikely to hurt a dog, and to feed only a few at a time. There is no chart of cashews by body weight, so size it down for your dog: one for a small dog, a few for a big one, and not every day. Break a whole cashew in half for a toy breed, since a whole nut is a choking risk for a small throat.
Skip them altogether if your dog is overweight, has had pancreatitis, has high blood fats, or eats a low-fat diet from your vet. The Merck Veterinary Manual notes that dogs with pancreatitis are usually moved to low-fat food and low-fat treats.
Signs of trouble after cashews
- Within hours: vomiting, diarrhea, gas, a tender belly or low appetite, usually from eating too many.
- Later on: vomiting that keeps returning, belly pain, weakness and refusing food. Merck lists these among the signs of pancreatitis, which needs a vet.
- Right away: gagging, repeated swallowing or trouble breathing means a nut may be stuck.
- After salted nuts: vomiting, diarrhea, weakness, tremors or seizures.
Merck names Miniature Schnauzers, Yorkshire Terriers, Cocker Spaniels, Dachshunds, Poodles, sled dogs and overweight dogs as more prone to pancreatitis. If your dog is on that list, call sooner after a large helping.
"My dog has eaten cashews before and was fine"
That makes sense, and it probably happened just as you remember. Plain cashews are not poisonous, and a few in a healthy dog often pass without a sign. It does not make cashews safe in any amount for every dog. What decides it is how many were eaten for the dog's size, whether they were salted or mixed with other nuts, and the dog's own pancreas and health history. Pancreatitis can also show up after the day is over, so a dog who seemed fine that evening could still turn sick later.
Mixed nuts, macadamias and cashew look-alikes
- Macadamia nuts: a separate nut that causes a specific poisoning in dogs. The Merck Veterinary Manual reports signs after about 2.4 grams of macadamia per kilogram of body weight. That number is for macadamias only.
- "Australian nut" or "Queensland nut": other names for macadamia, as Pet Poison Helpline notes.
- Holiday nut tins and variety packs: the AKC points out that cashews are often sold mixed with other nuts around the holidays, which is where macadamias sneak in.
- Cashew apple: the fleshy fruit on the cashew tree is a different part of the plant from the nut. Keep dogs away from it.
- Almonds and peanuts: see can dogs eat almonds? and can dogs eat peanuts?.
Check what you learned
Quick check
Questions about dogs and cashews
Can dogs eat one cashew?
Usually, yes. One plain, shelled, unsalted cashew now and then is unlikely to hurt a healthy dog, according to the AKC.
Which nut can dogs not eat?
Macadamia nuts are the one to know, because they cause a recognized poisoning in dogs. Anything chocolate-coated or heavily salted is off the list too, and can dogs eat almonds? covers bitter almonds.
Are peanuts or cashews better for dogs?
Neither is a health food for a dog. Plain, unsalted cashews and plain, unsalted peanuts both work as a rare, tiny treat, and both turn risky in salted, flavored or mixed form. Pick whichever you have plain, and give very little.
Are raw cashews toxic to dogs?
Store cashews sold as "raw" have already been taken out of the shell. A truly unprocessed cashew in its shell is a different matter, because the shell liquid is an irritant. Call your vet if your dog chewed shells.
Can dogs have cashew butter?
A lick of plain cashew butter is not toxic, but it is concentrated fat. Check the label for xylitol, salt and chocolate before sharing any nut butter.
Sources
Checked September 24, 2026.
- American Kennel Club, Can Dogs Eat Cashews? Are Cashews Bad for Dogs?
- ASPCA Animal Poison Control Center, My Pet Ate Something! When Should I Seek Help?
- USDA Agricultural Research Service, Cashew Nut Shell Liquid
- Merck Veterinary Manual, Pancreatitis and Other Disorders of the Pancreas in Dogs
- Merck Veterinary Manual, Macadamia Nut Toxicosis in Dogs
- Pet Poison Helpline, Australian Nut