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Only one of my three dogs ate a large chunk of fresh pineapple, including some core. The other two didn't touch it. What should I do for the one who ate it?

Dogs · Food safety

Last reviewed: 2026-09-05 · Reference ranges: ASPCA, Pet Poison Helpline & Merck Veterinary Manual

Short answer

Focus on the dog that ate the pineapple. While the flesh is safe in moderation, the tough core is hard to digest and can cause an upset stomach or even a blockage, especially if it was a large piece. Watch him closely for the next 24-48 hours for signs like vomiting, diarrhoea, loss of appetite, or abdominal discomfort. Ensure he has access to fresh water. If you notice any of these signs, or if he seems lethargic or in pain, call your own vet for an assessment. There's no need to treat the other dogs, but do keep all human food securely out of reach in the future.

Pineapple — Food safety facts

Feed with care · Dogs · full breakdown on the linked food page

Safe in small fresh pieces. Skip the spiky skin and core. Too much causes diarrhoea.

Dogs and cats carry the same rating (Feed with care), so the notes below hold for either pet.

Pineapple is not poisonous to dogs, but it is easy to over-feed. Rich fat, salt or seasoning can bring on vomiting or diarrhoea within a day, and repeated large portions are a recognised trigger for pancreatitis.

If it ate some before you noticed, watch for vomiting, diarrhoea, loss of appetite, unusual tiredness or a painful, swollen abdomen over the next 24 hours. A one-off small amount in a healthy adult usually passes with water and rest; repeated exposure, a puppy or kitten, a senior, or a pet with an ongoing illness is a reason to call your vet the same day.

The full verdict, portion guidance and serving notes are collected on the Pineapple food facts page.

Open the full food page: Pineapple food facts →