Can dogs eat avocado? The real risks (pit, fat, guacamole)
Published by Planète Pets · managing editor: Clément Lacaille · how our guides are written
If your dog has swallowed an avocado pit, whole or in large pieces, call your vet without waiting: the pit can get stuck in the stomach or intestine. If your dog ate a prepared dish such as guacamole, which often contains onion and garlic, call your vet or an animal poison helpline too — in the US the ASPCA Animal Poison Control Center, (888) 426-4435 (a consultation fee may apply), in the UK Animal PoisonLine, 01202 509 000, in France the CNITV in Lyon, 04 78 87 10 40. Do not make your dog vomit yourself: a pit coming back up can lodge in the oesophagus, so that is the vet’s call. On the other hand, a bite of avocado flesh eaten by a healthy dog is rarely serious: the main risk for dogs is not the one most people think of.
Contents · 6 sections
Persin: mainly dangerous to other species
Avocado contains a toxin, persin, found in the leaves (the most toxic part), the stems, the pit and the fruit. According to the Merck Veterinary Manual, it damages heart muscle and causes mastitis in cage birds (budgies, canaries, cockatiels), rabbits, guinea pigs, horses, goats, sheep and cattle. A budgie can die within 48 hours of eating 8.7 g of mashed avocado. The same manual states that dogs seem relatively resistant: a single case report, covering two dogs in Kenya in 1994, describes heart damage attributed to avocado.
A study by Dainton and colleagues, published in 2022 in the Journal of Animal Science, points the same way (see the study). The researchers measured persin in different parts of the fruit and in avocado meal (a by-product of avocado oil), then fed beagles a kibble containing up to 18% of that meal: no adverse health effects were seen during the trial. That does not mean you should feed avocado to your dog, but fear of persin should not hide the two real risks.
Real danger no. 1: the pit
The Merck Veterinary Manual notes that a dog swallowing the whole pit can develop a gastrointestinal obstruction. The pit is large, hard, smooth and slippery: it goes down the throat of a medium or large dog, but not necessarily out of the stomach or through the intestine. A dog chewing it can also choke on a fragment. Signs to watch for in the following hours or days:
- repeated vomiting, especially if the dog brings up everything it eats or drinks;
- loss of appetite, lethargy, a painful belly (hunched back, not wanting to be touched);
- no stools, or straining without result.
These signs call for a vet visit the same day. The vet can confirm the blockage by X-ray or ultrasound and, depending on where it sits, remove it by endoscopy or surgery. The same goes for any object too large to pass, such as an unsuitable toy: see our article on toys that are too small and the choking hazard.
Real danger no. 2: the fat
A whole avocado (about 200 g) provides nearly 30 g of fat, and more than 80% of its calories come from fat, according to the USDA FoodData Central database (14.7 g of fat per 100 g). A very fatty, unusual meal can cause digestive upset and, in some dogs, pancreatitis. A study by Lem and colleagues, published in 2008 in JAVMA and covering 198 dogs with pancreatitis, found that eating unusual foods or table scraps, and above all raiding the bin, was associated with a markedly higher risk (see the study). Being overweight was also among the associated factors. Signs: vomiting, tummy pain, the “prayer position” (front end down, rear end up), lethargy.
Table: which part, which risk, what to do
| What the dog ate | Main risk | What to do |
|---|---|---|
| A little flesh (a bite, a slice) | Low in a healthy dog | Watch digestion; call if vomiting or diarrhoea |
| A whole avocado or more, without the pit | Fat overload, digestive upset, pancreatitis in susceptible dogs | Call the vet, especially if the dog has had pancreatitis before |
| The pit, whole or in pieces | Intestinal blockage, choking | Call the vet at once; do not induce vomiting yourself |
| The skin | Tough and fibrous, hard to digest | Watch; call if vomiting |
| Guacamole, dips, salads | Onion, garlic, salt, chilli, sometimes raisins or chocolate on party tables | Call the vet or a poison helpline with the list of ingredients |
| Leaves, stems, fallen fruit (garden, warm regions) | The leaves are the most toxic part of the plant | Call the vet; keep the dog away from the tree |
Table based on the Merck Veterinary Manual and the USDA database. It helps you size up the situation before you call; it does not replace your vet’s advice.
Prevention at home
- Throw pits and skins into a closed bin or one out of reach: that is where dogs find them most often.
- Do not leave a bowl of guacamole or a snack platter on the coffee table. Party buffets stack up the risks: chocolate, pastries, fatty leftovers (see our article on the toxic dose of chocolate by weight).
- If you also keep birds, rabbits or rodents, avocado is strictly off-limits for them: our cockatiel diet page lists the foods to avoid.
- For safe ways to treat your dog, our pointers are gathered on the dog food page.
Frequently asked questions
My dog ate a piece of avocado, what should I do?
If it was a little plain flesh and your dog is healthy, the risk is low: keep an eye on it for 24 hours. Call your vet if it vomits, has diarrhoea, ate the pit or if the avocado was prepared (guacamole, dip).
Is the avocado pit toxic to dogs?
It contains persin, but its real danger is mechanical: too big and too hard to digest, it can block the stomach or intestine. Call your vet as soon as you notice it is missing.
Can I give my dog avocado?
There is no need: a dog on a complete diet does not need it, and avocado is very fatty. If your dog has eaten a little, there is no need to panic; just do not add it to its meals.
Is dog food with avocado dangerous?
Some kibbles use avocado meal or avocado oil. In dogs, the 2022 study cited above found no adverse effects with avocado meal making up as much as 18% of the diet. If you have doubts about a specific food, ask your vet.
An accessory from our shop for this use: Fish-shaped silicone lick mat (24.5 × 19 cm) (€32.90) · the whole shop
This guide is part of Planète Pets’s Dogs universe. Our advice is general in nature: for any health concern, your veterinarian remains the only reference.
