Avocado
CautionNot the blanket toxin most lists claim — dogs are relatively resistant to persin, with no reliable reports of mammary or cardiac effects. The real risks are fat-driven pancreatitis and the pit, which can cause an obstruction needing surgery.
This food guide has not been reviewed by a veterinarian. It summarises general information from sources and should not be used to decide whether a food is suitable for an individual dog or to assess an emergency.
Check before feeding
Check the precautions before sharing
Risk depends on preparation, ingredients or amount. Read the precautions below; body weight alone cannot establish a safe portion.
Signs and health concerns
This list includes both observable signs and conditions identified through examination or testing. It cannot establish the cause or whether an exposure is safe.
- Vomiting
- Diarrhoea
- Abdominal pain
- Loss of appetite
- Retching
More about this food
Plenty of pet-food lists print avocado as flatly toxic to dogs. The veterinary literature is more specific than that. The compound of concern is persin, which causes mammary necrosis in lactating mammals and myocardial necrosis in birds and some mammals. But the Merck Veterinary Manual states that dogs appear relatively resistant to persin, and that there are no reliable veterinary reports of persin-driven mammary or cardiac effects in dogs or cats. In experiments with purified persin, mice developed mastitis at 60-100 mg/kg and myocardial necrosis above 100 mg/kg; no canine threshold has been established.
What actually endangers a dog is more mundane. First, fat. Avocado flesh is very high in fat, which can produce vomiting, diarrhea, abdominal pain and appetite loss within hours, and can trigger pancreatitis. Second, the pit. An avocado stone is large, hard and slippery — a near-ideal foreign body for lodging in the esophagus or intestine. That is the genuine avocado emergency, and it often requires endoscopy or surgery. Repeated retching, an inability to keep any food down, and drooling with obvious distress are the signs to act on. The skin and leaves carry more persin than the flesh, so keep those away too, and note that guacamole adds its own problems if it contains onion or garlic.
Worth knowing if avocado is a staple in your kitchen: birds are a completely different story. They are highly susceptible, and 8.7 g of mashed avocado killed a budgerigar within 48 hours. Do not apply the dog reasoning to a household bird.
Practically: a dog that stole a bit of flesh usually just needs watching for GI upset. If the pit was swallowed, or might have been, call your veterinarian, an emergency clinic, or the ASPCA Animal Poison Control Center at (888) 426-4435 immediately regardless of dog size — a pit is not something to wait out. Do the same if a large fatty meal is followed by ongoing vomiting or abdominal pain. Do not induce vomiting at home; bringing a large pit back up can lodge it in the esophagus, and the right approach is a veterinary decision.
Frequently asked questions
- Is avocado toxic to dogs?
- Not in the way most lists suggest. Dogs are relatively resistant to persin and there are no reliable reports of mammary or cardiac effects in dogs. The concerns are high fat and the pit.
- My dog swallowed an avocado pit.
- Call your vet or the APCC at (888) 426-4435 now. The stone is a classic obstruction risk in the esophagus or intestine and may need endoscopy or surgery. Do not try to make the dog vomit it up.
- Can dogs eat guacamole?
- Better not. Beyond avocado's fat load, guacamole commonly contains onion and garlic, which are separate and more serious hazards for dogs, plus salt and lime that add nothing useful.