Could a small bite of cooked quince cause stomach upset or an allergic reaction in my cat who has

Short answer

Yes, it's possible, though not from poisoning. The cooked flesh is safe, but any new food can trigger a reaction in a sensitive cat. Watch for signs of intolerance like gas, soft stools, or vomiting within a few hours. Allergic reactions, which are rarer, might include itchy skin, ear infections, or gastrointestinal signs. Since the seeds contain trace cyanide, always ensure the quince is prepared seed-free. If you notice any adverse signs, stop feeding it and stick to her regular diet. Contact your vet if symptoms are severe or persist.

Quince — Food safety facts

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

Cooked flesh is safe in small amounts. The seeds contain cyanogenic compounds.

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

Quince is not poisonous to cats, 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.

Why these cautions matter

Stone-fruit pits and some seeds release cyanide when crushed, and quite apart from that they are a choking and blockage hazard.

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

Open the full food page: Quince food facts →

Could a small bite of cooked quince cause stomach upset or an allergic reaction in my cat who has food sensitivities?

Quince — Food safety facts

Why these cautions matter

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