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My 4 kg indoor cat ate a few pomegranate arils that had been left out and gone slightly moldy yesterday — is moldy fruit more dangerous than fresh for a cat?

Cats · Food safety

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

Short answer

Yes, mold adds risk on top of the tannins already present in pomegranate rind and seeds. Fungal growth produces additional compounds that irritate the gut far more than fresh arils alone. Watch for repeated vomiting, watery diarrhea, drooling, or lethargy over the next 12 to 24 hours. Since she is a 4 kg indoor cat, even mild dehydration from vomiting and diarrhea can escalate quickly. Call your own vet if she vomits more than once or seems unusually quiet or uninterested in food.

Pomegranate — Food safety facts

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

A few arils are fine, but the rind and inner membrane are high in tannins and can cause vomiting.

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

Pomegranate 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.

Pomegranate 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 Pomegranate food facts page.

Open the full food page: Pomegranate food facts →