Yes, olive oil is safe for dogs in moderation — it is not toxic, and in small amounts it may support coat health, digestion, joint comfort, and brain health. Too much fat can cause problems though, so dosage and quality both matter. Here is everything you need to know before adding olive oil to your dog's diet.
Olive oil is a staple in our kitchen at EXAU. Read our guide to cooking with extra virgin olive oil here.
Health Benefits of Olive Oil for Dogs
Humans have studied olive oil for decades, linking it to heart health, reduced inflammation, and cognitive protection. Many of these same properties may benefit dogs as well.
Coat and Skin Health
Olive oil is rich in monounsaturated fats and natural antioxidants. These can help reduce dryness, itching, and flakiness, and may promote a shinier, healthier coat over time.
Digestive Health
A small amount of olive oil may help regulate bowel movements and reduce constipation. Some pet owners also report it supports general digestive comfort, though results vary by dog.
Joint Health
Olive oil has documented anti-inflammatory properties. Based on articles retrieved from PubMed, research on oleocanthal — a key phenolic compound in extra virgin olive oil — found that it inhibits COX-1 and COX-2 enzymes more effectively than ibuprofen at equivalent concentrations. These are the same inflammatory enzymes targeted by common pain medications. For dogs with arthritis or other joint issues, the natural anti-inflammatory activity in high-quality EVOO may help reduce inflammation and discomfort. It is not a replacement for veterinary care, but it can be a useful dietary addition.
Brain Health
High-quality extra virgin olive oil is rich in polyphenols — antioxidants linked to protection against cognitive decline in humans. This may be especially relevant for older dogs.
How to Give Your Dog Olive Oil
Start Small
Begin with half a teaspoon or less and give your dog's digestive system time to adjust before increasing the amount. Most guidelines suggest around half a teaspoon per day for small dogs and up to a full teaspoon for larger dogs. Always start with less.
Mix It Into Their Food
The easiest method is drizzling olive oil directly over your dog's regular food. It mixes in easily and most dogs take to it without issue.
Use High-Quality Extra Virgin Olive Oil
Quality matters. Use a genuine extra virgin olive oil — not refined, blended, or low-grade oil. Refined oils contain none of the polyphenols or antioxidants that make EVOO beneficial. Learn how to tell if your olive oil is fake.
Can Olive Oil Be Harmful to Dogs?
Upset Stomach
Too much olive oil at once can cause an upset stomach, loose stools, or vomiting. Start with a very small amount and increase slowly.
Pancreatitis
Dogs who consume excessive fat may be at risk of pancreatitis — inflammation of the pancreas that can become serious. Research from the University of Queensland published in the Journal of Nutrition (2004) found that high-fat diets are associated with pancreatitis in dogs, and that pancreatitis causes approximately 28% of canine diabetes cases. Dogs with a history of pancreatitis or digestive sensitivity should not have olive oil without veterinary guidance.
Weight Gain
Olive oil is calorie-dense — around 120 calories per tablespoon. Even small daily additions can add up, particularly for less active dogs. Factor it into their overall daily calorie intake. Read more about olive oil calories here.
Avoid Flavored or Infused Oils
Never give your dog garlic-infused or herb-infused olive oil. A peer-reviewed review of household foods toxic to dogs and cats (*Frontiers in Veterinary Science*, University of Milan, 2016) confirmed that Allium species — garlic, onion, leek, and chives — are a documented cause of poisoning in dogs, causing oxidative damage to red blood cells. Always use plain extra virgin olive oil with no added ingredients.
Frequently Asked Questions
How much olive oil can I give my dog?
A general starting point is half a teaspoon per day for small dogs and up to one teaspoon per day for larger dogs. Always start with less and increase gradually. Your veterinarian can give you a more precise recommendation based on your dog's size and health.
Can I give my dog olive oil every day?
Small daily amounts are generally considered safe for healthy dogs. That said, confirm the right amount with your vet before making it a daily habit, especially if your dog is on a specific diet or has any health conditions.
What type of olive oil is best for dogs?
Extra virgin olive oil is the best choice. It is the least processed grade, retains the most natural antioxidants, and contains no chemical additives. Avoid refined or blended oils — they lack the polyphenols that make EVOO beneficial.
Can dogs eat olives too?
Yes, with some caveats. Plain olives without pits are generally safe in small amounts. Avoid olives that are stuffed, marinated, or packed in brine, as the added sodium and seasonings can be harmful. Read our full guide on dogs and olives here.
Is olive oil better than fish oil for dogs?
They serve different purposes. Fish oil is higher in EPA and DHA omega-3s, which are particularly beneficial for inflammation and joint health. Olive oil is richer in oleic acid and polyphenols. Both can be beneficial. Ask your vet which is more appropriate for your dog's specific needs.
Can olive oil help with a dog's dry coat?
Many owners report improvement in coat shine and skin condition after adding a small amount of olive oil to their dog's food. The healthy fats and antioxidants in EVOO may support skin barrier function. Start with a very small amount and watch for any digestive reaction.
Shop our 100% Italian extra virgin olive oil, made in Calabria, single origin, and family farmed since 1927.
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