Yes, cats can have olive oil in small amounts — it is not toxic to them, and in the right quantity it may support a healthier coat, better digestion, and immune function. That said, cats have very different nutritional needs than humans, and too much fat can cause real problems. Here is everything you need to know before adding olive oil to your cat's diet.
We use extra virgin olive oil every day in our kitchen at EXAU. Read our guide to cooking with extra virgin olive oil here.
Is Olive Oil Safe for Cats?
Olive oil is not toxic to cats. Most cats can tolerate a small amount without any issue, and some owners add it to their pet's food as an occasional supplement. However, because cats require a high-protein, low-carbohydrate diet and olive oil is a pure fat with a high calorie density, it should always be given in moderation.
Before introducing any new food to your cat's diet — including olive oil — it is worth checking with your veterinarian, especially if your cat has existing health conditions or is on a special diet.
Health Benefits of Olive Oil for Cats
Olive oil is well studied for its benefits in humans, where it is linked to reduced inflammation, better cardiovascular health, and longevity. Some of those same properties may extend to cats, though research specifically on felines is limited. Here are the most commonly reported benefits:
Healthier Coat and Skin
The healthy fats in olive oil can help reduce dry skin and dandruff, resulting in a shinier, softer coat. If your cat tends toward dull fur or itchy skin, a small amount added to their food a few times a week may help.
Improved Digestion
Olive oil can help lubricate the digestive tract, which may ease constipation and support more regular bowel movements. This is one of the more practical reasons cat owners reach for it, particularly for cats prone to digestive sluggishness.
Immune Support
Extra virgin olive oil is rich in polyphenols and antioxidants that help neutralize free radicals. These same compounds that benefit human health may offer immune-supporting effects for cats as well.
How Much Olive Oil Can You Give a Cat?
The general guideline is no more than one quarter teaspoon per day. Start with even less if your cat has not had it before, and watch for any digestive reaction. A small drizzle over their food a few times a week is a reasonable approach for most healthy adult cats. More is not better — olive oil is calorie-dense, and consistent overfeeding can lead to weight gain and the health problems that follow.
Risks of Giving Cats Too Much Olive Oil
Digestive Upset
Too much fat at once can cause diarrhea or vomiting in cats. If you notice either after introducing olive oil, reduce the amount or stop entirely and consult your vet.
Weight Gain and Obesity
Olive oil is calorie-dense. Regular overfeeding can contribute to obesity, which increases a cat's risk of diabetes, joint problems, and heart disease.
Pancreatitis
In some cats, a high-fat diet can trigger pancreatitis — an inflammation of the pancreas that causes vomiting, abdominal pain, and lethargy. Based on articles retrieved from PubMed, research on fat digestibility in cats (*Journal of Nutritional Science*, 2014) found that pancreatic function declines in older cats and directly affects their ability to process fat — meaning older cats are at greater risk from high-fat additions to their diet. This is more of a concern with large or repeated doses rather than an occasional small amount, but it is worth being aware of, particularly for senior cats.
Flavored or Infused Oils
Never give your cat flavored or infused olive oils. Garlic-infused oil is particularly dangerous. Based on articles retrieved from PubMed, a peer-reviewed review of household foods toxic to dogs and cats (*Frontiers in Veterinary Science*, University of Milan, 2016) confirmed that Allium species — including garlic, onion, leek, and chives — are a documented cause of poisoning in cats. The ASPCA Animal Poison Control Center lists these as toxic to cats. Always use plain extra virgin olive oil with no added ingredients.
Frequently Asked Questions
Can olive oil help with a cat's hairballs?
It is sometimes suggested as a home remedy for hairballs because it can help lubricate the digestive tract. While some owners report success with a small amount added to food, clinical evidence is limited. Talk to your vet if hairballs are a recurring issue.
What type of olive oil is best for cats?
If you are going to give your cat olive oil, use extra virgin. It is the least processed variety and retains the most natural antioxidants. Avoid all flavored or infused oils — garlic, herbs, and other additives can be toxic to cats.
Can kittens have olive oil?
It is best to avoid giving olive oil to kittens. Their digestive systems are still developing and their nutritional needs are more specific than adult cats. Stick to veterinarian-recommended kitten food.
How often can I give my cat olive oil?
A few times per week at most, in small amounts of no more than a quarter teaspoon. Consult your vet for personalized guidance, especially if your cat is older or has any health conditions.
Is olive oil safe for cats with sensitive stomachs?
Not necessarily. Cats with existing digestive issues or sensitive stomachs may react poorly to added fat. If your cat has a history of GI problems, check with your veterinarian before trying it.
Can I use olive oil on my cat's fur or skin directly?
Some owners apply a very small amount to dry or flaky skin patches. If you try this, use only plain extra virgin olive oil and avoid the face and eyes. For persistent skin issues, a veterinarian visit is always the better option.
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