Stone Fruit Pit Poisoning in Dogs and Cats

Why stone fruit pits are dangerous

Stone fruit pits contain amygdalin, a compound that breaks down into hydrogen cyanide when the seed is cracked open and digested. Cyanide blocks cells from using oxygen, causing rapid cellular suffocation. The flesh of the fruit is safe, but a dog or cat that chews through the hard pit releases the toxin inside. A handful of crushed cherry pits can deliver a dangerous dose to a small dog or cat.

Even apart from cyanide, the hard smooth pit is a significant choking hazard and can cause an intestinal blockage that requires surgical removal. Owners often miss the pit under the sofa or in the garden waste bin.

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.

Symptoms of stone-fruit-pits poisoning

• Choking, gagging, or pawing at the mouth shortly after chewing a pit
• Vomiting and diarrhoea within 1 to 6 hours, which may contain blood
• Bright red or strawberry-coloured gums that turn pale or blue as cyanide takes effect
• Difficulty breathing, weakness, and collapse
• Signs of intestinal blockage — repeated vomiting, straining to defecate, and a distended abdomen — if the pit is swallowed whole

What to do right now

1. Call your vet or a poison line immediately if you suspect your pet has chewed or swallowed a stone fruit pit.
2. Bring the pit remains or the fruit packaging so the vet can identify the source and assess cyanide risk.
3. Do not induce vomiting — if the pit is sharp or large, bringing it back up increases the risk of oesophageal damage or aspiration.
4. Watch for choking, gagging, and changes in gum colour — note when symptoms started.
5. If the pit was swallowed whole, monitor for signs of intestinal blockage over the next 24 to 48 hours and seek urgent care if vomiting persists or the abdomen becomes distended.

Sources & further reading

• ASPCA Animal Poison Control — pet poison database & dosage references
• Pet Poison Helpline — toxicology triage guidelines
• Merck Veterinary Manual — toxicology monographs
• Vets Now (UK) — emergency toxicosis guidance

Other poisonings with overlapping signs

• Dog Poison Control Emergency Guide — shares signs: difficulty breathing
• Blue-Green Algae / Cyanobacteria — shares signs: difficulty breathing
• Paracetamol Poisoning in Dogs and Cats — shares signs: difficulty breathing

Owners also ask

• My 1 kg kitten just licked an unknown substance—what should I do in the first 30 minutes?
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Frequently asked questions

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