Can Dogs Have Cooking Oils? Olive, Avocado & More

Adding a little oil to a dog’s dinner is one of those tips that gets passed around dog owners endlessly, usually as a fix for a dry coat, flaky skin, or just to make a meal more tempting. The instinct is sound, since fats do support skin and coat health, but the details matter more than the tip suggests. Which oil you choose, how much you use, and whether your dog actually needs it are all worth thinking about before you reach for the bottle, and the answers are not always the ones the popular advice implies.

The good news is that several common cooking oils are safe for dogs in small amounts, and none of the everyday ones are outright toxic the way some foods are. The catch is that oil is pure fat and pure calories, so the line between a helpful drizzle and an unhelpful glug is thinner than people realise. Too much oil does not give a shinier coat faster; it gives loose stool, extra weight, and in some cases a real risk of pancreatitis.

This guide lines the oils up side by side so you can see how they compare, answers the avocado-oil question that brings a lot of people here, and points you to our dedicated guide on olive oil for the deeper detail on the most popular choice. By the end you will know which oil to use, how much, and when adding oil is not the answer at all.

One thing worth settling before we go further: the question of which oil is, for most dogs, far less important than people assume. Owners often agonise over whether avocado oil beats olive oil, or whether coconut oil has special powers, when the honest reality is that the everyday cooking oils are much more alike than different from a dog’s point of view. They are all mostly fat, all safe in small amounts, and all problematic in large ones. The marketing around premium oils is aimed at humans, not dogs, and a dog’s body does not particularly care whether its drizzle of fat came from an olive or an avocado. Keeping that perspective saves a lot of needless worry and money.

Why owners add oil at all

Before comparing the oils, it helps to be clear about why anyone adds oil to a dog’s food, because the reason tells you how much you actually need. There are really three motivations, and they call for quite different amounts. Getting clear on which one applies to you is the quickest way to decide whether you need oil at all, and if so, how little will do.

The first is coat and skin health. Fats, particularly certain fatty acids, do contribute to a glossy coat and supple skin, and a dog short on them can look dull and flaky. This is the reason most people reach for oil, and it is legitimate, but it is also the one where a complete diet usually has it covered already. The second is palatability: a little oil makes a bland or dry meal smell and taste better, which can help a fussy eater or an older dog with a fading appetite. The third is as a mild remedy for constipation, where a small amount of oil can have a gentle lubricating effect, though this is a stopgap rather than a treatment and a dog that is regularly constipated needs a vet rather than a daily spoon of oil.

Notice that none of these call for much oil. A coat benefit comes from a steady, tiny daily amount, not a big dose. Palatability needs only enough to add aroma. And the constipation effect works at a small amount too. In every case, the useful quantity is a drizzle, which is worth remembering as we go through the individual oils, because the type of oil matters far less than getting the amount right.

It is also worth being honest about a fourth, unspoken motivation: many owners add oil because it feels like doing something good for their dog. There is a satisfying sense of care in drizzling a little oil over dinner, the same impulse that leads people to add supplements and toppers. That instinct is kind, but it is worth checking against reality, because feeling helpful and being helpful are not always the same thing. If your dog is on a complete diet and has a healthy coat, adding oil is not improving anything; it is just adding calories. The most caring thing is often to resist the urge and let the balanced food do its job.

This matters because oil is one of the easiest ways to unbalance an otherwise good diet without realising it. Complete dog foods are carefully formulated so that fats, proteins, and everything else sit in the right proportions. Pour extra fat on top regularly and you tip those proportions, adding calories that can quietly lead to weight gain over months. So the question to ask before reaching for the bottle is not which oil but whether your dog needs any oil at all. For many dogs, the answer is no, and the oil is better kept for the occasional fussy-eater day rather than made a daily ritual. None of this means oil is bad; it simply means oil is a tool with a narrow job, best used deliberately rather than by habit.

The oils compared

Here is the whole group at a glance. The verdicts assume small amounts added to food, which is the only sensible way to use any oil with a dog. The detail on each follows below. You will notice most land on the same verdict, safe in small amounts, which is itself the headline: the oils are far more alike than different, and the meaningful distinctions are about richness and the few genuine hazards rather than the everyday choices.

Is avocado oil good for dogs?

This is the question that brings many people here, partly because avocado itself has a complicated reputation with dogs. So let us be clear: avocado oil is safe for dogs in small amounts, and it is a perfectly reasonable oil to use. The confusion comes from the avocado fruit, not the oil, and untangling the two is the whole point of this section.

Whole avocado contains a compound called persin, concentrated mainly in the pit, skin, and leaves, which can cause digestive upset in dogs, and the large pit is a genuine choking and blockage hazard. Avocado oil, by contrast, is the extracted oil with those problem parts left behind, so it does not carry the same concerns. As an oil, it is rich in healthy monounsaturated fats, much like olive oil, and a small drizzle can support skin and coat.

The usual caveats apply: it is still pure fat and pure calories, so use a small amount, and more does not help faster. If you have avocado oil in the kitchen and want to add a little to your dog’s food, that is fine. If you are choosing an oil to buy specifically for your dog, avocado oil offers no clear advantage over the cheaper and equally suitable olive oil, so there is no need to seek it out. The main takeaway is reassurance: the oil is not the part of the avocado to worry about.

The persin question is worth understanding a little more fully, because it is the source of a lot of mixed messaging about avocado and dogs. Persin is a natural fungicidal compound found throughout the avocado plant, and it is genuinely toxic to some animals, birds especially, at fairly low doses. Dogs are considerably more resistant to it than birds, and the amount in avocado flesh is relatively low, which is why a dog that eats a little avocado flesh usually suffers nothing worse than mild stomach upset rather than serious poisoning. The pit and skin carry more persin and, in the pit’s case, a real obstruction hazard, which is why those are the parts to keep firmly away. The extracted oil, having left the pit, skin, and most of the persin behind, sidesteps the whole issue, which is why it earns a clean pass where the whole fruit gets a more cautious one. This is a recurring theme across pantry foods: the processed form and the whole food can carry quite different risks, so it always pays to be specific about exactly which form you mean.

Olive oil and how much to use

Olive oil is the most popular choice for good reason. It is widely available, mostly healthy monounsaturated fat, and well tolerated by dogs in small amounts, which is why it is the default recommendation when an owner wants to add a little oil for coat or palatability. A small drizzle, scaled to your dog’s size, is a sensible occasional addition.

A quick word on type, since it comes up: extra virgin olive oil, the less processed kind, is perfectly fine for dogs and is what most people have, though a dog cannot tell the difference between extra virgin and a more refined olive oil the way a human palate might. Both are safe, so there is no need to buy a premium bottle specifically for the dog. What you should avoid is any olive oil blend that has been flavoured or infused, particularly with garlic, since garlic is toxic to dogs. Plain olive oil, of whatever grade, is the safe choice.

Because olive oil is the most common choice and there is a fair amount of detail worth getting right, from how much to use to which type and how to introduce it, we have covered it in its own dedicated guide rather than repeating all of it here. If olive oil is the one you are reaching for, that guide is the place to go for the full picture. It also walks through the specific benefits olive oil offers and the situations where it genuinely helps, which is more depth than is sensible to duplicate across every oil in this comparison.

Canola, sesame and coconut oil

Can dogs have canola oil?

Yes, canola oil is safe for dogs in small amounts. It is a neutral, mild oil with nothing special to offer nutritionally but nothing harmful either when used as a small drizzle. If canola is what you have in the cupboard, it is a perfectly acceptable choice for the occasional spoonful in food. As with every oil, the amount is what matters, not the type. You may have seen alarmist claims about canola online, mostly aimed at human diets and often overstated; for a dog getting an occasional small drizzle, there is no cause for concern.

Can dogs have sesame oil?

Sesame oil is safe for dogs in tiny amounts, but its strong flavour means a little goes a very long way. Plain sesame oil is fine; the heavily toasted, intensely flavoured kind used in cooking is best used sparingly because the taste can be overwhelming for a dog. There is no special benefit to sesame oil over a milder option, so it is more a use-what-you-have situation than a recommendation to seek it out. One practical caution is that sesame oil often turns up already mixed into sauces and marinades, which commonly contain soy sauce, garlic, and other ingredients that are too salty or outright unsafe for dogs, so the oil being fine does not make those dishes fine.

What about coconut oil?

Coconut oil is safe in small amounts and has a devoted following among some owners, but it deserves a specific caution that the others do not: it is very rich and unusually easy to overdo. Because it is solid at room temperature and feels wholesome, people tend to use too much, and a large amount commonly causes loose stool and adds significant calories. If you use coconut oil, start with a tiny amount, much less than you think, and watch how your dog responds. The grand health claims made for it are not well supported, so treat it as one safe option among several rather than a superfood.

Coconut oil is also sometimes recommended for topical use, rubbed onto dry skin or paws rather than fed, and in small amounts that is generally harmless, though most dogs will simply lick it off. If you do apply it to the skin, use a thin layer and do not be surprised when your dog grooms it away, which brings us back to the same eat-it-in-moderation rule anyway. The bottom line on coconut oil is that it is fine but overhyped: there is nothing wrong with a tiny amount, and nothing magic about it either, so it does not deserve the special status some marketing gives it. If you enjoy using it, a little is fine; if you do not, you are missing nothing your dog needs.

What about fish oil and omega supplements?

If the reason you are adding oil is genuinely to improve a dull coat or itchy skin, it is worth knowing that kitchen cooking oils are not the most effective tool for that job. The fats most associated with coat and skin health are the omega-3 fatty acids, and the everyday cooking oils, olive, canola, sesame, and the rest, are not rich sources of them. They provide fat and calories and a little coat support through sheer fattiness, but they are not delivering the specific nutrients people imagine.

Fish oil is the more targeted option here, because it is genuinely high in the omega-3s that support skin, coat, and joint health. Many vets recommend a fish oil supplement for dogs with skin or coat problems, and there are products formulated specifically for dogs with the dose worked out. The catch is that fish oil is not a free-for-all: too much can cause loose stool, interfere with certain medications, and add unwanted calories, and the right dose depends on your dog’s size and health. So fish oil sits in the care category, not because it is dangerous but because it is a supplement to be dosed properly rather than splashed on by eye. If you want to try it, choose a product made for dogs and follow the dosing on the label or your vet’s advice rather than reaching for a human supplement and guessing.

The practical upshot is a useful split. If you want to make a meal tastier or add a little fat on a fussy day, a small drizzle of a safe cooking oil is fine. If you are trying to fix a real coat or skin issue, a vet-recommended omega-3 product is the better route, and a persistent skin problem deserves a vet visit rather than more oil of any kind. Matching the tool to the actual goal saves you from pouring on cooking oil in the hope of a benefit it cannot really deliver.

It is also worth flagging that a dull coat or itchy, flaky skin can be a sign of something other than a simple lack of fat. Allergies, parasites, hormonal conditions, and other health issues all show up in the coat, and none of them are fixed by oil. So if your dog’s coat problem does not respond to good food and a proper supplement, that is a signal to involve your vet rather than to keep escalating the oil. Reaching for more and more fat in the hope of a cosmetic fix can mask an underlying problem while quietly adding to the dog’s waistline, which is the opposite of helpful.

In short, think of cooking oil and omega supplements as answering two different questions. Cooking oil answers how do I make this meal a bit tastier or richer today, and the answer is a small drizzle of whatever safe oil you have. Omega supplements answer how do I support my dog’s skin and coat over the long term, and the answer is a properly dosed product, ideally chosen with your vet. Confusing the two leads to the classic mistake of pouring ever more cooking oil onto food in pursuit of a glossy coat, which mostly just makes the dog heavier. Keep the two jobs separate and you will use each tool well.

How much oil is safe

Because every safe oil shares the same downside, too much fat, the amount is the single most important thing to get right, and it scales with your dog’s size.

These are illustrative starting points, not prescriptions, and they are deliberately modest. Oil adds calories quickly, so it counts toward your dog’s daily intake just like a treat. To keep it in proportion, check where extras fit using the dog feeding schedule by age calculator, and confirm your dog is at a healthy weight with the dog weight calculator before adding fat to the bowl. If a little oil loosens the stool, cut back or stop.

It helps to picture just how concentrated oil is. A single tablespoon of any oil carries well over a hundred calories, all of it pure fat, which for a small dog can be a meaningful slice of the entire day’s allowance in one spoonful. That is why the amounts in the table look so small: a teaspoon feels like nothing as you pour it, but to a ten-kilogram dog it is a real addition to the day. This is the most common way a well-meaning oil habit backfires, with the daily drizzle quietly adding up to noticeable weight gain over a few months while the owner wonders where the extra padding came from. Measuring rather than free-pouring, and keeping oil occasional rather than daily, prevents that drift.

The other reason to start small and build up, rather than diving in with a full spoonful, is that a dog’s gut needs to adjust to extra fat. Introduce too much oil too suddenly and the likely result is loose stool, not because the oil is unsafe but because the digestive system was not ready for the jump. A few drops the first time, then a gradual increase to the modest target amount over several days, gives the gut time to adapt and lets you spot any sensitivity before it becomes a mess. This gentle introduction is the same principle that applies to any new food, and it is just as worth following for something as simple as a spoonful of oil.

Frequently asked questions