Olive Oil and Heart Health: What the Evidence Says

by greektasteonline on Oct 27, 2026

Yes, olive oil is good for your heart, but mostly because of what it replaces. Swapping butter, ghee, coconut oil or palm oil for olive oil is linked with a lower risk of heart disease. Pouring it on top of everything else you eat is not. This guide covers what the research shows, what it does to cholesterol, how much is sensible and how to choose a bottle worth buying.

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TL;DR

Olive oil helps your heart mainly when it replaces saturated fat such as butter, ghee, coconut oil or palm oil. The British Heart Foundation says to use it in moderation within a balanced diet.
Its direct effect on cholesterol numbers is small. The bigger gains show up in long-term studies of heart disease and death.
Benefits appear to level off at around 20 g a day, roughly a tablespoon and a half.
Extra virgin has the most polyphenols, but there is no clear proof it beats regular olive oil for heart outcomes. Choose it for flavour and polyphenols, and watch the calories.

Is olive oil good for your heart?
What large studies show about heart disease
Olive oil and cholesterol
Extra virgin or regular: does it matter for your heart?
How much olive oil is enough?
Simple swaps that put the evidence to work
Our view: buy less, buy better
Where to find a Greek extra virgin for everyday use
FAQ
Sources

Is olive oil good for your heart?

The British Heart Foundation (BHF) calls olive oil a healthy choice, largely because of its place in the Mediterranean diet and its high content of monounsaturated fat. All types, whether extra virgin, virgin or regular, are high in unsaturated fats, and the BHF links monounsaturated fat with better heart health. UK dietary guidance says to cut foods rich in saturated fat and replace them with unsaturated fats such as olive, rapeseed or sunflower oil.

So the question is not whether olive oil has magic properties. It is whether it is a better fat than the one it displaces. For most people cooking with butter or palm oil, it is.

A teaspoon of olive oil gives you around 30 calories and 3 g of fat. According to the BHF, that includes 2.2 g of monounsaturated fat and only 0.4 g of saturated fat. That calorie figure matters, as we explain below.

Nutrition figures for a teaspoon of olive oil

What large studies show about heart disease

Most of the evidence comes from observational research, which follows large groups of people over years. It shows association, not proof, but the pattern is consistent.

A 2022 meta-analysis in Frontiers in Nutrition found higher olive oil consumption was associated with a 15% lower risk of cardiovascular disease (RR 0.85) and a 17% lower risk of all-cause mortality (RR 0.83). The benefit appeared to plateau at around 20 g a day.
A 24-year study reported by the BHF found that people who used about a teaspoon (5 g) of olive oil instead of the same amount of butter, margarine or mayonnaise had a slightly lower risk of heart disease, around 5 to 7 per cent lower.
A 2025 analysis presented in JACC linked higher olive oil intake with lower cardiovascular mortality. Replacing 10 g a day of butter or margarine with olive oil was associated with 7 to 14% lower risks of all-cause, cardiovascular and other mortality.
The PREDIMED trial, with just under 7,500 participants, is the strongest piece of the puzzle because it was a randomised trial. Heart UK reports that a Mediterranean diet supplemented with extra virgin olive oil cut cardiovascular disease by 31% compared with a low-fat control diet.

Note that PREDIMED tested a whole diet, not a bottle of oil on its own. Olive oil came with vegetables, pulses, nuts and fish.

One honest caveat: an umbrella review from 2024 concludes that olive oil is a healthy choice for chronic disease prevention, but studies differ a lot in oil type, dose and population. Expect a modest, real benefit, not a miracle.

What large studies show about heart disease — overview diagram

Olive oil and cholesterol

This is where many articles overpromise. The direct effect on blood cholesterol is smaller than most people assume.

A 2022 meta-analysis in the British Journal of Nutrition found that each extra 10 g a day of olive oil had minimal, generally trivial effects on total cholesterol, LDL, HDL and triglycerides in adults. An earlier 2018 meta-analysis found olive oil raised HDL more than other plant oils, yet lowered total cholesterol, LDL and triglycerides less effectively than some of them.

There are some brighter signals for polyphenol-rich oils. A 2023 systematic review associated olive oil polyphenols with a 1.13 mg/dL rise in HDL, and high daily intake with a 4.28 mg/dL fall in LDL. The same review notes that the European Food Safety Authority recognises a claim that olive oil polyphenols protect LDL particles from oxidative damage.

The practical reading is this. Olive oil is not a cholesterol drug. Where it helps is by taking the place of saturated fat. The BHF explains that replacing foods high in saturated fat, such as butter, ghee or fatty meat, with unsaturated fats can help lower LDL cholesterol while keeping HDL steady. If your cholesterol is high, speak to your GP or practice nurse before relying on diet alone, and read about dietary approaches to high cholesterol for the wider picture of what a cholesterol-friendly plate looks like.

Extra virgin or regular: does it matter for your heart?

Extra virgin olive oil has the most polyphenols. But the BHF says there is no clear evidence it is significantly better than regular olive oil for heart outcomes, since both are high in monounsaturated fat. Replacing saturated fat is the main event.

So why choose extra virgin? Three reasons:

Polyphenols. The EFSA claim applies to oils with at least 5 mg of hydroxytyrosol and its derivatives per 20 g of oil. Most supermarket bottles do not state their polyphenol content, so you cannot tell.
Flavour. A peppery, grassy oil makes vegetables, pulses and salads taste better, which is how people actually end up eating more of them.
Minimal processing. Extra virgin is pressed without refining, so it keeps more of the olive’s natural compounds.

If you want to judge a bottle yourself, our guide to tasting, evaluating and buying extra virgin olive oil walks through it. For polyphenol numbers specifically, see high polyphenol olive oil and the 250 mg/kg test. And if you are weighing organic against conventional extra virgin, this comparison of organic and extra virgin explains what each label does and does not tell you.

How much olive oil is enough?

There is no official UK daily target for olive oil. The research gives a useful ceiling, though: the 2022 meta-analysis saw benefits level off at about 20 g a day. That is around a tablespoon and a half, or four teaspoons.

Here is what that looks like in a day:

Use	Typical amount	Approx. oil
Dressing for a large salad	1 tablespoon	around 13–15 g
Roasting vegetables for two	2 teaspoons	around 9–10 g
Drizzle over beans or soup	1 teaspoon	around 5 g

Those weights are kitchen approximations. The figures are a guide, not a prescription.

The calorie point is real. A Nutrition Reviews paper from 2020 says extra virgin olive oil is healthful and should be preferred in a balanced diet, but that excessive consumption can still have adverse effects because of its calories. The BHF’s advice is to avoid adding olive oil if it pushes up your total calories. Swap, don’t stack.

Do olive oil shots work?

Sipping a spoonful neat is a social media habit, not a research-backed method. A daily spoonful can fit a heart-healthy diet if it replaces less healthy fat, but taking it as a shot adds the calories without any extra benefit. On gut health claims, the BHF says the polyphenols in a typical teaspoon are too low to affect gut bacteria. Study-level doses would need more than 5 tablespoons a day, which is a lot of calories. Using the oil with food is simpler and just as good.

Simple swaps that put the evidence to work

Butter on toast or vegetables: use olive oil instead.
Frying with ghee, coconut or palm oil: use olive oil for sautéing and roasting. Rapeseed oil is also on the UK list of unsaturated options.
Mayonnaise-heavy dressings: whisk olive oil with lemon juice or vinegar and a pinch of salt.
Biscuits and pastry: keep as occasional foods. Olive oil does not make them heart-healthy.
Finish dishes raw: a drizzle over lentils, white beans or tomatoes keeps the flavour and the polyphenols at their best.

The oil works best inside a pattern: pulses, vegetables, whole grains, fish, nuts and olives. Heart UK summarises research showing that the Mediterranean diet can improve blood lipids, including lowering LDL cholesterol, lower blood pressure and improve insulin sensitivity. For ideas beyond the oil itself, see other typical Mediterranean dishes and ingredients, and our own pieces on the Mediterranean diet and heart health and ways to use olive oil in Mediterranean cooking.

Our view: buy less, buy better

We import Greek food, so we are not neutral about olive oil. We are also not interested in selling you the idea that a bottle fixes your heart. What we see is that people who switch to a good extra virgin oil use it in the places where it replaces butter and processed dressings, and they enjoy their food more. That enjoyment is what makes a healthy pattern last.

Our advice is to pick the oil you will actually want to eat with a spoon over beans, then use it as your everyday fat instead of adding it to the fat you already use. Look for a harvest date, a named producer and dark glass or a tin, because light and age degrade the oil. Keep it away from the hob and use it within a few months of opening. And if you have a heart condition or take cholesterol medication, olive oil is a good part of your diet, not a replacement for your treatment. Your GP or cardiology team sets that plan.

— Ioannis

Where to find a Greek extra virgin for everyday use

We source our oils directly from Greek producers and choose them for authenticity and nutritional quality. For a polyphenol-focused bottle, look at our high polyphenol limited production Greek extra virgin olive oil. If you prefer organic, we offer Greek organic extra virgin olive oil in ceramic bottles and an unfiltered certified organic extra virgin in a 500 ml glass bottle. Free shipping applies on orders over £59.95, and new customers get 15% off their first order. You can also browse olive oil, honey, olives and more in one place.

FAQ

Is olive oil good for cholesterol?

Indirectly, yes. Olive oil itself has only a small effect on cholesterol readings in trials, but replacing saturated fats like butter, ghee or palm oil with it can help lower LDL cholesterol. If your levels are high, ask your GP about a full plan.

How much olive oil should I have a day for my heart?

There is no official figure. A large meta-analysis found benefits levelling off at about 20 g a day, or around a tablespoon and a half. Count it as part of your daily fat, not an addition to it.

Is extra virgin olive oil better for the heart than regular olive oil?

It contains more polyphenols, but the BHF says there is no clear evidence it is significantly better for heart outcomes. Both are high in monounsaturated fat. Extra virgin is a good pick for flavour and polyphenols.

Can olive oil prevent heart disease?

No single food can. Studies link higher olive oil intake with lower cardiovascular risk, but they show association. The best results come from the whole Mediterranean-style pattern, as seen in the PREDIMED trial.

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