Why avocado is harmful to pets
Avocado contains a toxin called persin which can affect the heart and gastrointestinal tract of dogs and cats.
The fruit flesh may cause vomiting, diarrhea and abdominal pain, while the pit can cause an intestinal blockage.
Why speed matters
Delaying care significantly worsens outcomes. Some signs appear hours or days later, so "looks fine right now" is not a reason to wait.
Signs to watch for
- Vomiting
- Diarrhea
- Abdominal pain or bloating
- Weakness or lethargy
- Signs of gastrointestinal obstruction such as straining
What to do right now
- Call your veterinarian or an emergency poison line immediately
- Do not induce vomiting if a pit is suspected or if the dog or cat is showing signs of obstruction
- Rinse the mouth with water and offer small amounts of fresh water to dilute any remaining toxin
- Monitor for worsening signs and transport to a veterinary clinic as soon as possible
The step-by-step response, from the first minute to the vet visit, is in our Avocado Poisoning in Dogs and Cats emergency guide.