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My nursing 4 kg cat ate a slice of pear with seeds while caring for her kittens — are the cyanide compounds in the seeds dangerous for her or the litter?

Cats · Food safety

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

Short answer

The cyanide compounds in pear seeds are present in very small amounts, and a single slice is unlikely to cause serious poisoning in a 4 kg nursing cat. However, repeated ingestion of seeds could accumulate toxicity over time, which is especially concerning for a cat nursing a growing litter. Watch for signs of vomiting, diarrhea, or unusual lethargy in the mother, and monitor the kittens for any changes in feeding or energy. Offer plain pear flesh without seeds in moderation as an occasional treat, and call your vet if anything seems off.

Pear — Food safety facts

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

Flesh is safe. Remove the core and seeds — seeds contain cyanide compounds.

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

Pear 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.

Pear can turn up now and then, but not as a daily habit: keep the rest of the day's food unchanged and watch the litter box and how quickly they finish the next meal.

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

Open the full food page: Pear food facts →