Olives are not toxic to cats, but they are not really “good” for them either and should only ever be an occasional, tiny treat, if at all. Most vets and pet-nutrition sources recommend avoiding olives as a regular snack because the risks (salt, additives, choking hazard) outweigh any minor benefits.

Quick Scoop

  • Not poisonous, but not needed
    Olives are considered safe and non-toxic for cats in very small amounts (less than one plain olive, and not every day). Cats are obligate carnivores, so olives add no essential nutrition to their diet.
  • Salt and seasoning risk
    Many olives are packed in brine and are very high in sodium, which can contribute to dehydration and electrolyte imbalance in cats. Stuffed or marinated olives may contain garlic, onions, spices, or preservatives that can be harmful.
  • Choking and tummy troubles
    Olive pits can be a choking hazard or cause intestinal blockage if swallowed. The fat content and unfamiliar nature of olives can also lead to vomiting or diarrhea in some cats.
  • Why cats go crazy for them
    Some green olives contain compounds (similar to those in catnip) that can trigger playful or “high” behavior in cats, which is why they sometimes seem obsessed with them. That reaction is about scent and brain chemistry, not about olives being a healthy snack.
  • Safe treat guidelines (if your vet says it’s okay)
    • Only plain, pitted, unsalted olives.
    • Less than one small piece, and only occasionally (a couple of times a week at most).
* Stop immediately if you notice vomiting, diarrhea, or odd behavior, and contact a vet.

If your cat shows interest, it is safer to offer a vet-approved cat treat or a bit of plain cooked meat instead of olives.

Bottom line: Olives are not toxic, but they are not “good” for cats and are best skipped or kept as a very rare, tiny treat after checking with your vet.

Information gathered from public forums or data available on the internet and portrayed here.