Why?
Like cherries and peaches, plums are stone fruit: the pit, leaves and stems contain amygdalin, which releases cyanide once chewed. The hard, oval pit can also cause a blockage. The flesh isn't toxic, but it's sugary and has a laxative effect, so to be safe, avoid it.
How much?
No amount is recommended. If your cat goes outside, pick up fallen fruit in the yard.
The risks
- Pit, stem and leaves contain cyanogenic compounds
- Swallowed pit: intestinal blockage
- Diarrhea (laxative effect of the flesh)
- Bright red gums, dilated pupils, trouble breathing
Your cat ate some: what now?
If your cat chewed or swallowed a pit, leaves or a stem, call your vet or an animal poison control center right away, without waiting for symptoms. Don't try to make your cat vomit yourself. If your cat only tasted a bit of flesh, watch for 24 to 48 hours, especially for diarrhea.
Better options
For a safe treat, a small piece of plain cooked turkey or chicken is perfect. If you want fruit, a few blueberries will do.
Common questions
Can cats eat prunes?
Even without the pit, no: they're very sugary and strongly laxative, so diarrhea is the likely result. Some prunes are also sold with their pits in.
Are fallen plums in the yard dangerous?
Yes, especially for a playful cat that might crunch a pit. Pick them up regularly, along with leaves and pruned branches.
This information is general and does not replace advice from a veterinarian. If your cat has swallowed something toxic, call your vet or an animal poison control center right away, without waiting for symptoms.