Avocado Oil vs Olive Oil: An Honest Comparison

I'll say now what I say through this article: I never use avocado oil.

I grew up on good olive oil. My childhood memories are full of it.

At the start of every summer my family would drive down to Bodrum — specifically to Milas, which is also where Heraclea's mill is now — and the first thing we'd do, before unpacking anything, was visit the olive oil supplier. You can't really get fresh olive oil at the peak of summer. Olive oil is produced in the fall, so by July or August anything you find is from the previous year's harvest. If it's been stored properly, in stainless steel tanks with no oxygen contact at 14°C or below, it holds most of what made it worth buying. If it hasn't, it tastes like the inside of a forgotten cabinet.

We needed that oil because summer at our house wasn't a meat or stew season. Summer is zeytinyagli season. The word literally means "with olive oil." It's a category of Turkish dishes where vegetables get cooked slowly in good olive oil, then refrigerated overnight, and eaten cold the next day. They're better cold. You can serve them at noon when nobody wants a hot meal. The oil isn't background in those dishes. It IS the dish. The artichokes, the green beans, the leeks, the dried beans, the stuffed grape leaves are all vehicles for the oil to do its work.

That's the culture Heraclea is built on. The team that makes this oil grew up on these foods. So when we put out our Early Harvest at 550 mg/kg in polyphenols — well above the 250 mg/kg threshold the EU uses for its authorized olive oil health claim — we're not making it to win a tasting prize or to look right on a shelf. We're making it because somewhere in Bodrum someone has a pot of green beans cooling on the counter and they need an oil that can hold up to that.

This is the long way of explaining why I don't use avocado oil. Once you grew up eating this way, the question stops being interesting. Why would you even look for an avocado oil when you have a superior oil sitting on your counter every day?

But the avocado oil vs olive oil question keeps coming up, so here's the rest of it.

On the smoke point

The number is real. Avocado oil's smoke point lives around 480°F. Olive oil's sits between 325°F and 410°F depending on the bottle. People see that gap and decide olive oil is the salad oil and avocado oil is the cooking oil.

But here's a kitchen secret nobody who sells avocado oil wants you to know. Your stove doesn't run that hot. The pan you think is screaming hot is probably hovering between 300°F and 400°F. That's well inside olive oil's range. I cook with Mature Harvest constantly. Sautéing. Roasting at 400°F. Searing. The oil sits there and does its job. The only thing I genuinely can't do is deep-fry, and you shouldn't be deep-frying at home anyway. That has nothing to do with the oil. That's about not having a commercial hood.

And there's a deeper thing the smoke point chart misses. An oil's stability under sustained heat isn't really about the temperature where you start to see visible smoke. It's about oxidation — what the chemistry does over time at cooking heat. A 2018 study from the University of South Australia put olive oil head-to-head with avocado oil, coconut oil, and several others under sustained cooking heat. Extra virgin olive oil came out the most stable. The polyphenols protect the oil from breaking down. They protect the eater, too. Avocado oil has no equivalent.

So when someone tells me avocado oil is "better for cooking," I usually want to ask what they're cooking. Outside of restaurant-grade searing, olive oil handles it. And the oil is doing something for you while it cooks. Avocado oil is just sitting there.

The health argument

Both oils are rich in monounsaturated fats. That metric is roughly a tie. That's the talking point the avocado oil people lead with and it isn't wrong. It's just not the whole story.

After that single metric, the gap opens up and never closes. Avocado oil doesn't have polyphenols in any meaningful quantity. Olive oil's polyphenols are the whole reason the Mediterranean diet research keeps coming back. Inflammation goes down. Cardiovascular markers improve. Cancer risk drops in populations that consume olive oil daily. Lifespan stretches. That isn't really about "the diet." It's about the oil at the center of it.

If you're buying oil for health reasons this is where the conversation ends. Avocado oil is a fine fat. A fat is what it is. A good extra virgin olive oil sits in a different category — closer to a functional food, the way fermented dairy or oily fish are. The molecule that makes olive oil cardiovascular medicine simply isn't in the avocado.

A side note worth knowing. Most U.S. supermarket olive oils don't hit that polyphenol threshold either. The ones labeled "extra virgin" often don't meet the legal definition of extra virgin. Multiple investigations over the last decade have found this. So if your reference point for olive oil is a bottle from the grocery aisle, of course the comparison with avocado oil feels close. Both are neutral. Both do nothing in particular. That's the problem. Not the comparison.

Flavor — the part nobody mentions

Here's what people miss when they reach for avocado oil because it's "neutral." Neutral isn't a feature in an olive oil. It's a tell. It means something has been done to the oil.

The first time I tasted real extra virgin olive oil, the kind that's harvested early and pressed within hours of being picked, I almost coughed. There's a peppery sensation at the back of the throat. That's the polyphenols again — they show up on the tongue and the throat at the same time. Grassy. Slightly bitter. Slightly sweet. Not flavor you cover up. Flavor you reach for.

Most of what gets sold as olive oil in U.S. supermarkets isn't that. It's been refined, blended, sometimes mixed with completely different oils, and what you taste is closer to a flat fruity wash. If that's your reference point, no wonder the comparison with avocado oil sounds reasonable. Both feel like nothing. The bottle of real olive oil tastes like a fight. It wakes up the bread. It makes the tomato salad need nothing else. The fried egg with a thread of it across the top becomes a thing you remember. You'd take a spoonful straight, on a slow morning, just to feel it.

That's the disagreement. Avocado oil is designed to vanish into the food. Olive oil insists on being there.

Three oils

There are three bottles next to my stove right now.

If I'm reaching for Early Harvest it's almost always at the end of a meal. I've cooked something, I've plated it, and right before I sit down I want one more thing happening. Usually that's a stripe of it over labneh. Sometimes a fried egg. Once a year I'll put it over vanilla ice cream with a flake of sea salt and people stop talking for a second.

Mature Harvest is the bottle I actually cook with. Quieter than Early Harvest. Smoother. Higher smoke point. I roast potatoes in it. I sweat onions in it. I cracked open a bottle last week to make a slow leek dish and the kitchen smelled like late October on the Aegean for the rest of the day.

Garlic Infused is the cheat. When I want a vinaigrette and I don't feel like peeling anything. When I want to put something on bread and have it taste like more work than it was. The oil already has the work in it.

No avocado oil. There hasn't been one in years. There's no occasion in my kitchen, and I cook constantly, where the question of avocado oil enters the conversation. The interesting question is which olive oil — which one for the artichokes, which one for the leeks, whether the Early Harvest would carry a slow-braised eggplant or if it should go to Mature Harvest.

That's the conversation worth having.

What to look for in a bottle

Most of what gets sold in America as extra virgin olive oil isn't. The grade is real but it isn't policed. What it leaves you with is a market where the words on the front of the bottle tell you almost nothing.

The thing that tells you something is the harvest date. A real one. Not "best by." The day the olives came off the trees. Olive oil isn't a pantry staple — it's closer to a fresh juice. Within a year of pressing it starts losing the very thing that made it worth buying. If a bottle doesn't proudly tell you when its olives were harvested, assume the worst.

We put a date on every bottle of Heraclea. We say where the olives came from. We publish the polyphenol numbers, because that's the number that actually matters for olive oil quality and health benefits. The brands that won't tell you those things are usually the brands whose numbers wouldn't survive being told.

And don't trust "first cold pressed" anymore. The phrase used to mean something. Today most olive oil presses are single-pass anyway, so the phrase is more marketing relic than quality signal. The signals that actually matter are harvest date, single-origin labeling, and a polyphenol count. The brands that show you those numbers are the ones doing the work.

A note on hair, skin, and the other rabbit holes

A lot of people end up on the avocado oil vs olive oil comparison looking for hair-care or skin advice. Both work as topical moisturizers, honestly. Avocado oil is heavier. Some hair types prefer that. Olive oil is lighter, and the polyphenols are antioxidants. There's research suggesting topical olive oil can support scalp health and hair-shaft strength.

We sell a Rosemary Infused Olive Oil that a lot of our customers use as a scalp treatment. We hear about it constantly. Wasn't what we set out to make. The rosemary plus the polyphenols does something people like. If you're trying to choose between the two specifically for hair, start with olive oil. Lighter on the scalp, cheaper to test, and if it doesn't suit you, you've still got a kitchen-grade ingredient on your hands.

My final words

I never use avocado oil. It isn't a moral position. It's that when you're cooking with good olive oil, nothing else needs to be on the counter.

If you've been buying both — try this experiment for a month. Pour the avocado oil down the sink. Replace it with one good extra virgin olive oil that has a real harvest date on the label. Cook everything in it. Finish dishes with it. Pay attention to what changes.

Then make a zeytinyagli. Green beans, garlic, tomato, onion, salt, and more olive oil than feels comfortable. Slow on the stove. Cool overnight. Eat it cold the next day. That single dish will tell you more about why olive oil is what it is than any comparison article ever could.