How much olive oil per day: the 20 g in the EU health claim

"How much olive oil per day" is one of those questions that sounds like common sense and that almost nobody answers with a number. The striking part is that the number exists, it sits in a European regulation and no brand invented it: 20 grams a day. It is not a dietary recommendation. It is the amount on which the European Union allows a specific effect to be claimed, and it comes with a condition that most supermarket bottles cannot prove they meet.

That is what this article is about: what the European olive oil claim actually says, what it measures and what it does not, how to choose among the twenty-three extra virgin olive oil references in our pantry, and why the five-litre tin we sell is probably not your best buy if you live alone. It is also about something uncomfortable: the polyphenol claim is the most quoted thing about olive oil and, at the same time, the hardest one for a customer to verify.

In short

• The EU permits the statement that "olive oil polyphenols contribute to the protection of blood lipids from oxidative stress", on one condition: 5 mg of hydroxytyrosol and its derivatives per 20 g of oil, and the consumer must be told the effect is obtained with 20 g a day.
• 5 mg per 20 g is 250 mg/kg. In an analysis of 32 extra virgin oils from Italian retail, only 3 reached it, with a range of 54.8 to 594.2 mg/kg.
• The claim is about oxidative damage, not about lowering cholesterol. In 2025, EFSA rejected a new application that sought to link those polyphenols to maintaining HDL.
• 20 g a day is about 180 kcal, a little under two tablespoons, and roughly 8 litres a year per person.
• You can fry with extra virgin, but ten successive fryings at 180 °C destroy between 66% and 94% of the phenols.
• Polyphenols fall over time: in a storage study, only oils starting above 1,100 mg/kg were still above the legal threshold at the end of the period.
• Practical consequence: buy the format you will actually finish, keep it in the dark, and use the good oil raw.

What the European claim actually says

Regulation (EU) 432/2012 is the closed list of things that may be claimed about a food in Europe. Olive oil has its own entry and the official English wording is this: "Olive oil polyphenols contribute to the protection of blood lipids from oxidative stress". The condition of use is equally literal: "The claim may be used only for olive oil which contains at least 5 mg of hydroxytyrosol and its derivatives (e.g. oleuropein complex and tyrosol) per 20 g of olive oil. In order to bear the claim information shall be given to the consumer that the beneficial effect is obtained with a daily intake of 20 g of olive oil".

There are the two numbers that matter, and they are almost never quoted together. 5 mg per 20 g is 250 mg per kilo of oil, and 20 g a day is the dose. Without either one, the sentence is off limits. One technical detail is worth knowing: the regulation measures hydroxytyrosol and its derivatives, a specific family of compounds, whereas lab reports and brochures usually give "total polyphenols". These are not the same figure, so "450 mg/kg of total polyphenols" does not automatically prove that the regulation's 5 mg are there.

The mechanism comes from a trial worth citing for its design. The EUROLIVE study gave 200 healthy men from six European cities three olive oils identical in fat and different in phenols — 2.7, 164 and 366 mg/kg — at 25 ml (22 g) a day for three weeks, with washout periods in between. HDL rose in steps with the phenolic content (0.025, 0.032 and 0.045 mmol/l), the total cholesterol to HDL ratio fell linearly (p = 0.013) and lipid oxidation markers also fell dose-dependently: oxidised LDL dropped by 1.21 to 3.21 U/l from the lowest to the highest phenolic content. Note the dose: 22 g a day, essentially the 20 g the regulation ended up adopting.

What the claim measures and what it does not

This is the part a supermarket is tempted to skip. The authorised claim says "protection of blood lipids from oxidative stress". It does not say cholesterol goes down, it does not say heart attacks are prevented and it does not say HDL goes up. It measures an oxidation process, an intermediate step, not a clinical outcome.

That the difference is not a nuance was shown by EFSA — the European Food Safety Authority, the scientific body that assesses these claims for the European Union — in 2025. The University of Bari, through the Italian competent authority, applied for a new claim: that olive oil polyphenols contribute to normal lipid metabolism, understood as maintaining HDL without raising LDL, proposing 250 mg/kg and 30 g a day, equivalent to 6 mg of hydroxytyrosol. The nutrition panel reviewed ten human intervention studies, focused on six randomised controlled trials — including EUROLIVE itself, with its 200 subjects, and VOHF, with 33 — and concluded that the evidence provided was insufficient to establish a cause-and-effect relationship. The opinion is dated May 2025 and published as EFSA Journal 2025;23(5):e9372.

In other words: the claim that already exists still stands, and the extension that would have turned olive oil into a "good cholesterol" product was turned down a few months ago. Anyone telling you otherwise is selling you something.

There is a second authorised claim that does touch cholesterol, and it rewards slow reading: "Replacing saturated fats in the diet with unsaturated fats contributes to the maintenance of normal blood cholesterol levels. Oleic acid is an unsaturated fat". The key word is replacing. The benefit lies in swapping one fat for another, not in adding oil to what you already ate. And to use it, the food has to meet the nutrition claim high unsaturated fat: at least 70% of the fatty acids present must come from unsaturated fat, and unsaturated fat must provide more than 20% of the energy. Extra virgin clears that comfortably; a sauce listing "olive oil" among its ingredients does not necessarily.

And a third piece, of a different kind. In a follow-up of 92,383 people over 28 years (60,582 women and 31,801 men, with 36,856 recorded deaths), those taking more than 7 g of olive oil a day had 19% lower total and cardiovascular mortality than those who almost never used it, 17% lower cancer mortality, 29% lower neurodegenerative mortality and 18% lower respiratory mortality. This is an observational study and the limit is clear: it measures people who already eat differently, so it suggests a lot and proves little. We cite it because it is the best population-level evidence available, not because it settles anything. The only large trial using extra virgin oil as the intervention, PREDIMED, was retracted in 2013 and republished in 2018 with the randomisation corrected, as we already explained in our article on how many walnuts a day.

Six decisions that change the oil you take home

1. Aim for 20 g a day and learn to recognise it

Twenty grams is a little under two tablespoons, about 180 kcal and, over a year, roughly 8 litres per person. That is the arithmetic to keep in mind when you pick a format, because it decides how long the bottle stays open. If there are two of you and you cook with oil, real consumption climbs fast; if you live alone and only use it to dress food, a five-litre tin will last you seven and a half months.

2. Extra virgin, virgin or "olive oil": the label is regulated

This is not marketing, it is analysis. Delegated Regulation (EU) 2022/2104 sets the limits for each category: extra virgin cannot exceed 0.80 acidity and its median of defects must be 0.0; virgin allows up to 2.0 acidity and a median of defects of up to 3.5; above that it is lampante and is not sold unrefined. What the bottle calls "mild" or "intense olive oil" is a blend of refined and virgin: it has been through a process that removes defects and, with them, the polyphenols. For the 20 g claim it is useless.

3. Variety and harvest matter more than price

In the analysis of those 32 Italian oils the range ran from 54.8 to 594.2 mg/kg of total phenols: a factor of ten between two oils that are legally the same thing. Olive variety, picking date and extraction explain that, not the label. A picual and an arbequina from the same brand in the same format are two different oils in the mouth, and the regulation gives you a legal cue: bitter and pungent are attributes that may be declared on the label with an intensity scale — light up to 3.0, medium between 3.0 and 6.0, intense above 6.0 — just like fruity. They are not a measure of polyphenols, but they are the only thing you can perceive without a lab. If an oil is neither bitter nor pungent, do not expect much from it on that front.

4. Buy the container you will finish

Here is the advice that costs us a sale. A 2023 storage study followed seven virgin oils kept in the dark at different temperatures: only those starting above 1,100 mg/kg stayed above the regulation's 250 mg/kg at 25 and 40 °C; one sample starting at 1,276 mg/kg fell below the threshold in 24 weeks at 40 °C, 13 weeks at 50 °C and 5 weeks at 60 °C; and four of the seven never reached the threshold even at 25 °C. Translated: the oil you want to meet the claim with has a functional expiry date well before its best-before date. If a tin takes you seven months to finish, the polyphenols at the end are not the ones you started with. The five-litre tin makes sense for a family cooking every day or for anyone who fries; for two people who only dress salads, a one-litre bottle or a bag in box is better, because it keeps the oil away from light and from air as it empties.

5. Store it dark, closed and away from the hob

The three variables in that study are temperature, oxygen and light, and all three live in your kitchen. The worst place on earth for a bottle of extra virgin is the worktop, next to the hob and in the window light. We stock the same Keras oil in a bottle and in a tin precisely because you can compare them: the tin lets no light through and, for the same money, it is the better of the two decisions. The same goes for the picual in a 500 ml tin. If you only have a bottle, keep it in a closed cupboard and never top it up with new oil on top of the old.

6. Fry with it, but do not count on the polyphenols in the pan

The myth that extra virgin cannot be heated has been going round for years and it is false: it is one of the most stable oils when hot, and the European frying limit of 180 °C sits well inside its comfort range. What does not survive is the phenolic compounds. A 2026 trial ran ten consecutive fryings of about 2.5 minutes at 180 °C with two extra virgins, one picual and one arbequina, and measured phenol loss by food: 91.5% to 93.6% in unbreaded foods such as anchovies or chicken wings, 66.3% to 78.9% in breaded ones such as aubergine, nuggets or fish fillets, and 68.3% to 72.7% with potato. The practical, unromantic conclusion: fry with extra virgin without guilt, but save the expensive oil for the raw vegetable dish, the bread and the cheese board.

Comparison: what you are buying in each category

How long each format lasts at 20 g a day

For one person following the 20 g a day figure. Halve it if there are two of you.

The shopping list

Olive oil touches more aisles than any other product, so the list is not only oil. Oils and vinegars holds the twenty-three organic extra virgin references, from the 250 ml arbequina from La Masrojana to the five-litre tin, by way of flavoured ones such as the extra virgin with rosemary. For everyday dressing, seasonal vegetables and fruit, loose pulses and bread for toast. Olives are the same fruit by another route. In canned fish the oil in the tin matters as much as the fish: the frigate mackerel in extra virgin olive oil — a small tuna-family fish from the Spanish coast, sold here as melva — and the sardines in extra virgin are two tins where sunflower oil has not been substituted in. Rounding off the basket: preserves, spices for flavouring at home, cheeses, precooked dishes, dried fruit and nuts and, if you want it all solved at once, an organic basket. There is also an offers section worth checking before you load up on oil.

On the supplement side, in fatty acids, the honest comparison is the one we made in our omega 3 article: olive oil provides neither EPA nor DHA, so it replaces nothing from that aisle. And if what you were after was antioxidants in a capsule, vitamins and minerals, superfoods, circulatory system and hair, skin and nails cover the whole shelf, with the usual warning: no capsule holds the claim that the oil holds.

Do you need a "high polyphenol" oil?

Here is the answer that complicates our own sales pitch. Oils sold as "high in polyphenols" usually cost considerably more, and the problem is not that they do not work: it is that you can almost never check the number. The label is not required to declare milligrams of hydroxytyrosol and its derivatives, the lab test costs more than the bottle, and when someone does publish a figure it tends to be "total polyphenols", which is not what the regulation measures. Of the 32 extra virgin oils analysed in Italian retail, only 3 cleared the threshold: the average was around 160 mg/kg, well below the 250 needed. Which means most of the perfectly decent extra virgins on the market, without being bad oils at all, are in no position to carry the claim.

Two consequences. First: if a brand publishes the figure together with its analytical method and its harvest, that is worth money and it is reasonable to pay for it. If it does not, you are paying for an expectation. Second, and this is the one that really matters: going from 55 to 160 mg/kg changes more than going from 400 to 600, and all that takes is stopping buying refined oil and moving to a decent extra virgin, which costs barely more. The same thing we said about fibre doses and about the form of magnesium: the first step up is the profitable one.

There is one benefit of extra virgin that does not depend on polyphenols and that almost nobody mentions: tocopherols. The same 2015 analysis calculated that the recommended daily amount of extra virgin covers around 50% of the recommended intake of tocopherols, that is, vitamin E. That is not an authorised claim for the oil — it is the study's own arithmetic — but it is an argument that holds up without printing numbers on the bottle.

Four things people repeat that are not true

"Olive oil lowers cholesterol"

The authorised polyphenol claim is about protecting blood lipids from oxidative damage, which is a different thing. The oleic acid claim is about replacing saturated fat, not about adding oil. And the application that tried to link those polyphenols to HDL was rejected by EFSA in May 2025 for insufficient evidence. Three official texts, and none of them says what the slogan says.

"You can't fry with extra virgin"

False, and in Spain it is frankly absurd: people have always fried with extra virgin here. It is stable when hot and the European frying limit, 180 °C, is within its range. What you do lose is 66-94% of the phenols, depending on the food. The mistake is not frying; it is believing the oil in the fryer still delivers what it delivered in the salad.

"The more expensive, the more polyphenols"

Price reflects variety, early harvest, yield and brand, and any of those can raise the bill without raising the phenols. The figure that counts is the one the brand publishes; if it publishes none, the price is not information.

"The big tin is always better value"

Better value per litre and worse per polyphenol if it takes you six months to finish. We sell five-litre tins and we still recommend them to people who cook a lot; to people who only dress salads we say buy one litre or a bag in box and spend the difference on a better oil.

Where to buy extra virgin olive oil in Barcelona and Sant Cugat

We have three shops and all three keep more than twenty organic extra virgin references on the shelf, from 250 ml to 5 litres, in bottles, tins and bag in box:

• Provença 242, 08008 Barcelona (Eixample district, between Balmes and Enric Granados).
• Còrsega 78, 08029 Barcelona (Eixample, near Sants and the station).
• Antoni Bell 2, 08174 Sant Cugat del Vallès (Volpelleres district, next to Volpelleres station).

The phone number is +34 683 118 961 and the email is linverd@linverd.com. Here is what you can do in the shop and not on a screen: pick up the same oil in a bottle and in a tin, put them side by side and let us explain why the tin protects it better; and, above all, taste the oil and feel the bitterness and the pungency at the back of your throat. That burn is not a defect or a marketing number: it is an attribute the regulation recognises with an intensity scale, and it is the only part of this whole story you can judge yourself, for free, without taking a label's word for it. If you are cooking for a crowd we will tell you which format to order and put it aside for you; and if you live alone, we will recommend the small bottle even though it means selling you fewer litres.

Frequently asked questions

How much olive oil per day is sensible?

The only figure backed by legislation is the 20 g a day that Regulation 432/2012 requires before the polyphenol claim can be used. That is roughly 180 kcal and a little under two tablespoons. It is neither a health maximum nor a minimum: it is the amount the effect was measured on.

Does olive oil make you gain weight?

It provides about 9 kcal per gram, like any fat: 20 g a day is 180 kcal. What changes the outcome is whether that oil replaces another fat or is added to what you already ate. The oleic acid claim is specifically about replacing saturated fat, not about adding oil.

Can you fry with extra virgin olive oil?

Yes. It is one of the most stable oils when hot, and in Europe frying should not exceed 180 °C. What does not survive is the polyphenols: in a 2026 trial with ten successive fryings at 180 °C, between 66% and 94% of the phenolic compounds were lost depending on the food. Fry with it, but only count polyphenols when it is raw.

What is the difference between extra virgin, virgin and plain "olive oil"?

Delegated Regulation 2022/2104 settles it by analysis: extra virgin has a maximum acidity of 0.80 and a median of defects of 0.0; virgin allows up to 2.0 acidity and a median of defects of 3.5. What is sold as "olive oil" — mild or intense — is a blend containing refined oil, and it is not olive juice.

How do I know whether my oil reaches 5 mg of hydroxytyrosol?

Almost never: the label rarely declares it and the lab test costs more than the bottle. Of 32 oils from Italian retail, only 3 passed the equivalent 250 mg/kg threshold, with a range of 54.8 to 594.2 mg/kg. If a brand does not publish the figure, the claim cannot be assumed to be met.

Picual or arbequina: which is better?

It depends what for. Variety, harvest date and extraction explain why two perfectly correct extra virgins can differ tenfold in phenols. What you can perceive without a lab is bitterness and pungency, which the regulation recognises as declarable attributes with an intensity scale: light, medium or intense. An arbequina is usually softer in the mouth, a picual more bitter and more pungent.

Where can I buy organic extra virgin olive oil in Barcelona or Sant Cugat?

At the three Linverd Market shops: Provença 242 (08008 Barcelona, Eixample district), Còrsega 78 (08029 Barcelona, Eixample, near Sants) and Antoni Bell 2 (08174 Sant Cugat del Vallès, Volpelleres district). Phone +34 683 118 961. There are more than twenty organic extra virgin references, from 250 ml to 5 litres, and you can compare the bottle and the tin of the same oil with someone standing next to you.

To wrap up

The answer to "how much olive oil per day" is 20 grams, and the interesting part is not the number but the condition attached to it: a minimum of 5 mg of hydroxytyrosol in those 20 g, which hardly any label declares. Getting that straight changes the whole purchase: the adjective on the bottle stops mattering and what starts mattering is the category, the variety, the container and how long it will sit open in your kitchen. You can see it all in oils and vinegars, or drop by any of the three shops and taste before deciding.

If this is your kind of thing, in the same vein we have how many chestnuts a day, which also starts from a European claim with an exact figure, which fermented foods contain live bacteria and when digestive enzymes help and when they do nothing. The whole health blog is written to the same rule: if the source does not give a figure, we do not give one either.

This information is for general guidance and does not replace advice from a healthcare professional. If you have high cholesterol, are on lipid-lowering treatment or follow a prescribed diet, talk to your doctor or a registered dietitian before changing the fats in your diet.