Are Cashews Poisonous to Dogs?

Plain cashews are not on the ASPCA or Pet Poison Helpline toxic-food lists and are not inherently poisonous to dogs (unlike macadamia nuts, which Pet Poison Helpline explicitly lists as toxic). However, cashews are NOT a recommended treat and carry real, non-trivial risks, so feed them rarely if at all. Key caveats: (1) Cashews are very high in fat. A fatty treat can trigger gastrointestinal upset and, more seriously, pancreatitis, which can be life-threatening. Dogs that are overweight, predisposed, or have any history of pancreatitis should never be given cashews. (2) Only ever offer plain, unsalted, roasted, unseasoned cashews. Salted cashews add a heavy sodium load (risk of excessive thirst, dehydration); avoid them. (3) Flavored, seasoned, or 'mixed nut' products are a hard no, as they frequently contain garlic powder, onion powder, or other seasonings that ARE toxic to dogs, and mixed nuts may contain macadamia nuts (toxic) or moldy nuts. (4) Avoid chocolate-covered or candied cashews entirely (chocolate and xylitol are both toxic to dogs). (5) Whole cashews are a choking and intestinal-blockage hazard, especially for small dogs; if given at all, offer a tiny amount. Portion guidance from vet-reviewed sources is very small and occasional only (roughly 1-2 for a small dog up to a few for a large dog, no more than once or twice a week). Because cashews offer no nutritional benefit a complete dog diet doesn't already provide, the safest choice is to skip them. When in doubt, contact a vet, ASPCA Animal Poison Control (888-426-4435), or Pet Poison Helpline (855-764-7661).

Are cashews poisonous to dogs?

No. Plain cashews are not classified as toxic by the ASPCA or Pet Poison Helpline, and they contain no known toxic principle for dogs. This is different from macadamia nuts, which Pet Poison Helpline does list as toxic. That said, 'not toxic' does not mean 'good for dogs' — cashews are very high in fat and should only ever be given plain, unsalted, and in tiny, occasional amounts, if at all.

My dog ate a few cashews. Should I worry?

A few plain, unsalted cashews are unlikely to poison a healthy dog, but watch for vomiting, diarrhea, lethargy, loss of appetite, or a hunched, painful posture, which can signal GI upset or pancreatitis from the fat. The bigger concerns are if the cashews were salted, seasoned (garlic/onion), chocolate-covered, or part of a mixed-nut bag that could contain toxic macadamia nuts. If your dog has a history of pancreatitis, ate a large quantity, or shows any of these signs, call your vet, ASPCA Animal Poison Control (888-426-4435), or Pet Poison Helpline (855-764-7661).

Why are cashews considered safer than macadamia nuts for dogs?

Macadamia nuts contain an unidentified toxin that causes a specific poisoning syndrome in dogs (weakness, tremors, vomiting, elevated body temperature, inability to walk), and Pet Poison Helpline lists them as toxic. Cashews have no such known toxin. The risks with cashews are general ones shared by any rich, fatty food — pancreatitis, GI upset, obesity, choking, and sodium from salting — rather than true poisoning.

• Pet Poison Helpline - Macadamia Nuts (confirms macadamia toxic; cashews not listed as toxic)
• VCA Animal Hospitals - Pancreatitis in Dogs (high-fat foods as a trigger)
• Dial A Vet - Can Dogs Eat Cashews? (vet-reviewed risk overview)

Last updated 2026-06-25