Can cats eat olive oil?
Safe in moderationPlain olive oil is not a known feline toxin, but cats do not need it and there is no established veterinary dose or proven routine benefit.
Reviewed by the Webvet Veterinarian Team · Last reviewed June 26, 2026
How much is OK
No evidence-based universal dose exists for cats. Ask your veterinarian before adding it routinely or using it for hairballs or constipation.
Why it's okay
Olive oil is not toxic to cats, but there is no established feline dose and no good evidence that it treats hairballs, constipation, or a dry coat. Cats are obligate carnivores, and even a teaspoon adds about 40 calories without supplying the animal-source nutrients a complete feline diet provides. Recurring hairballs, constipation, or coat changes need veterinary assessment rather than routine oil.
Risks to watch for
- Diarrhea and vomiting are common if you overdo it
- Adds meaningful calories to a small daily budget
- Does not replace veterinary treatment for hairballs or constipation
Olive Oil nutrition
- Calories
- ≈884 kcal / 100g (≈119 kcal per tablespoon)
- Fat
- ≈100g / 100g (entirely fat)
- Key nutrients
- Monounsaturated fat, vitamin E, vitamin K
More safe treats
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Frequently asked questions
Can cats eat olive oil?
Plain olive oil is not a known feline toxin, but cats do not need it and there is no established veterinary dose or proven routine benefit.
How much olive oil can cats eat?
No evidence-based universal dose exists for cats. Ask your veterinarian before adding it routinely or using it for hairballs or constipation.
Is olive oil bad for cats?
Olive oil is not toxic to cats, but there is no established feline dose and no good evidence that it treats hairballs, constipation, or a dry coat. Cats are obligate carnivores, and even a teaspoon adds about 40 calories without supplying the animal-source nutrients a complete feline diet provides. Recurring hairballs, constipation, or coat changes need veterinary assessment rather than routine oil. Watch for: Diarrhea and vomiting are common if you overdo it; Adds meaningful calories to a small daily budget; Does not replace veterinary treatment for hairballs or constipation.
Sources
Reviewed by the Webvet Veterinarian Team
General guidance based on credible veterinary sources — not a diagnosis or a substitute for your veterinarian. If your pet ate something toxic or is unwell, contact your vet or a pet poison line right away.