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Extra Virgin Olive Oil - Premium with polyphenols for heart health and cell protection

Holiston Extra Virgin Olive Oil is a premium Greek olive oil from early harvest Koroneiki olives, cold-pressed and unfiltered to preserve maximum freshness and flavor. It contains polyphenols, vitamin E, and unsaturated fats that help protect cells from oxidative stress and support normal cholesterol levels.

Availability In stock (>3 pcs)
Delivery to:
09/12/2025
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€39,70 / pcs €0,79 / 10 ml
Extra Virgin Olive Oil - Premium with polyphenols for heart health and cell protection

Holiston - Extra Virgin Olive Oil - premium

Holiston Extra Virgin Olive Oil is an exceptional Greek olive oil from early harvest, made exclusively from the Koroneiki variety.

Thanks to gentle cold pressing and its unfiltered form, it retains an intense green aroma and a high content of naturally occurring polyphenols that help protect cells from oxidative stress (approved health claim according to EU 432/2012).

  • Source of unsaturated fats – contribute to maintaining normal blood cholesterol levels
  • Contains vitamin E – helps protect cells from oxidative stress
  • Olive oil polyphenols – help protect blood lipids from oxidation

How to recognize truly high-quality olive oil?

High-quality extra virgin olive oil is characterized by gentle processing – ideally hand-picked olives, cold pressing, and minimal intervention.

Holiston stands out by preserving all natural nutrients thanks to unfiltered production and a high polyphenol content – antioxidants that contribute to the protection of blood lipids from oxidative stress.

Check out our article about polyphenols or read the truth about olive oil.

SUITABLE FOR

 

Notice

According to EU regulations, we must state on our website:

  • Follow the recommended daily dosage.

  • This product is not intended as a substitute for a varied and balanced diet.

  • If you are under medical care, pregnant or planning pregnancy, consult the use of this product with a qualified nutritionist or physician.

But! Every individual has different needs, which means the recommended dosage is not set in stone.

We, as sellers, are not qualified to give you any advice. Always consult a naturopath, holistic doctor, or another educated professional in traditional medicine (this may include conventionally trained doctors – the exceptional ones).

Extra panenský olivový olej Acaia – bruschetta

Holiston Extra Virgin Olive Oil

Holiston Extra Virgin Olive Oil from the island of Rhodes is unfiltered, cold-pressed, and rich in polyphenols (≥ 500 mg/kg), which help protect blood lipids from oxidative stress.

  • Monovarietal oil (Koroneiki)
  • Unfiltered (raw, "en rama") – preserves maximum bioactive compounds
  • Cold-pressed
  • Unfiltered – uses natural sedimentation (decantation)
  • Premium packaging – dark glass bottle and protective cardboard box with UV and heat protection
  • Origin: Rhodes (Greece)
  • Certified polyphenol content (≥ 500 mg/kg)

Where does it work best?

  • Morning routine: Two teaspoons on an empty stomach is a natural ritual to support vitality
  • Cold dishes: vegetable salads, hummus, bruschetta, cheeses
  • Hot meals: roasted vegetables, ratatouille, fish, pasta, or sourdough bread
  • PraveBio Tip: Perfect even on Czech roasted potatoes or a good slice of bread – just the way we love it.
  • + Real Salt™: Drizzle after plating and add Real Salt™ – a simple combo that elevates any dish.

Discover more olive oils at PraveBio.cz

International Awards Confirming Premium Quality

Holiston Extra Virgin Premium Olive Oil has shone on the international stage. It was recognized for its exceptional quality, health benefits, and innovative design. At the prestigious London Olive Oil Awards 2024, it won three major prizes: a Gold Medal for quality (in the monovarietal Koroneiki category), a Gold Medal for health impact thanks to its high polyphenol and healthy fat content, and a Platinum Award for packaging, highlighting the product's visual excellence.

In addition, the oil was listed among the “Awarded EVOOs” by the World Olive Center for Health. It is among the products with a high content of beneficial compounds and meets five EU-approved health claims. Holiston is not just an olive oil – it's a fusion of nature, science, and design.

It also made a strong impression in the world of design: it won the prestigious Red Dot Design Award 2024 for its sustainable, aesthetically refined packaging inspired by Greek heritage, and was featured in the industry magazine Formes de Luxe.

Thanks to EU certifications confirming five health benefits (including vitamin E, omega‑3, 6, and 9), Holiston ranks among functional superfoods that not only taste great but also support overall health. Its awards make it more than just an olive oil – it’s an experience that unites nature, science, and design.

Koroneiki Olive Oil – a Flavorful Rarity from the Island of Rhodes

Koroneiki olives are among the most valued varieties in the world. Native to Greece, they are now considered the gold standard for extra virgin olive oil. Thanks to their high content of polyphenols and antioxidants, they offer not only exceptional taste but also support for a healthy lifestyle.

A Natural Source of Health-Promoting Compounds

Koroneiki oil is rich in monounsaturated fats and polyphenols, particularly hydroxytyrosol. With a daily intake of 20 g of olive oil containing sufficient levels of these compounds, polyphenols from olive oil contribute to the protection of blood lipids from oxidative stress.
(EU-approved health claim – Regulation No. 432/2012)

The Ideal Choice for Those Who Believe in the Power of Nature

Koroneiki is a popular choice for those who seek olive oil as a daily part of a healthy lifestyle – a natural source of vitality and balance. After all, following Hippocrates' legacy, Holiston encourages: "Let food be thy medicine."

Hand Harvesting and an Intense Flavor

Olive oil from Koroneiki olives is characterized by a fruity flavor with a slight spiciness – a sign of freshness and bioactive compound content.

Hand harvesting is one of the key steps that sets Holiston apart from most oils on the market. The olives are harvested exclusively by hand while still green – at the optimal stage of ripeness.

Each fruit is carefully inspected, and any damaged or unripe ones are discarded. This time-consuming process ensures that only the highest quality olives reach the press. Harvesting takes place in low humidity and stable temperatures, which helps preserve both flavor and bioactive compounds.

The olives are then transported within a few hours in special crates to the mill, minimizing oxidation.

 

What Else Goes Well with Holiston Olive Oil?

  • Greek Delicacies from Simply Greek – fancy some rice, sea salt, sun-dried tomatoes, hummus, or a spread? We’ve got it. All made from authentic Greek ingredients.
  • Dried Greek Herbs, Spices, and Salt – time to refill your spice jars and salt shakers? Forget those mainstream spice brands that "cook for you" and their 20 CZK white poison! Change your habits today and season like you're on a Mediterranean holiday. 
  • Bread Mixes and Organic Flours – bake your own sourdough bread. Drizzle with olive oil, sprinkle some salt and enjoy a slice of heaven.
  • Balsamic Vinegars and Glazes – every salad needs a dressing like balsamic vinegar and olive oil. It’s yin without yang, Adam without Eve. We bring you real balsamic from a Greek producer – made without sulfites or added sugar.
  • Healthy Snacking  – craving something salty or sweet, or looking for a snack while watching TV? Check out our selection of treats that aren’t as evil as the greasy and oversalted snacks typical in Czech gastronomy.

TIP: You can find all these products in the Food category – just pick according to your taste.

Holiston Oil Production Process

Hand-picked olives

Hand-picked olives

The harvesting of green olives takes place in low humidity and stable temperature, selecting only the highest quality pieces. Within a few hours, they are pressed.

Cold pressing

Cold pressing

Holiston oils are processed with two-phase pressing at temperatures up to 27 °C – for maximum preservation of nutrients and aroma.

Natural purification

Natural purification

The oil is naturally purified using gravity – without mechanical filtration. The result is an authentic, 100% natural oil.

Polyphenol preservation

Polyphenol preservation

Thanks to gentle decanting, Holiston retains up to 20–30% more polyphenols – natural antioxidants.

Freshness preservation

Freshness preservation

Storage under nitrogen protects the oil from oxidation and ensures its stability, freshness, and shelf life.

Premium packaging

Premium packaging

Dark glass and a protective box with UV and thermal shielding preserve the oil’s quality even after opening.

 

Lesbos island

Why Choose Holiston

 

Holiston is a family brand that combines traditional olive cultivation with deep respect for nature and a healthy lifestyle. At its core is the Koroneiki variety, known for its exceptional quality and high polyphenol content. Olives are hand-picked at optimal ripeness and cold-pressed within a few hours to preserve the highest amount of natural antioxidants and a fresh, bold aroma.

The brand focuses on minimal processing and maximum naturalness, with no chemical treatments or filtration, ensuring authentic taste and high nutritional value. Holiston also believes that health is not just about the product itself, but a holistic approach – and therefore works with the principles of holistic farming, respecting nature’s cycles, soil and biodiversity.

Thanks to this philosophy and careful processing, the resulting olive oil excels not only in taste but also in its functional properties – making it the ideal choice for anyone seeking true quality, sustainability, and added value in their kitchen and daily life.

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Pure composition and natural character

100% cold-pressed olive oil, unfiltered, with no chemical treatments.

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Careful processing

Each olive is hand-picked and processed within a few hours of harvest.

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Known origin

Olives come from a single family’s own groves in Laconia, southern Peloponnese.

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Respect for nature and tradition

The oil is created in harmony with the natural rhythm, with respect for soil, climate, and trees.

 
 

Exceptional Polyphenol Content

✅ Verified laboratory content of 799 mg/kg polyphenols – far above the standard level.

Health Benefits Confirmed by Chemical Analysis

This premium Holiston olive oil was analyzed by the National and Kapodistrian University of Athens. The results show that daily consumption of 20 g of the oil provides 15.98 mg of hydroxytyrosol, tyrosol and their derivatives.

This meets the requirements for a health claim under EU Regulation 432/2012:

“Olive oil polyphenols contribute to the protection of blood lipids from oxidative stress.”

Key Analysis Values

Parameter Value (mg/kg)
Total Polyphenols 799
Oleocanthal 170
Oleacein 132
Hydroxytyrosol Derivatives 136

* Analysis based on published methods in J. Agric. Food Chem. and Molecules

Comparison with Regular Olive Oils

Parameter Holiston Regular Oil*
Total Polyphenols 799 mg/kg 150–250 mg/kg
Oleocanthal 170 mg/kg approx. 135 mg/kg
EU Health Claim ✅ Yes ❌ Usually not

*Zdroj: International Olive Center, UC Davis

 

Composition

 

NUTRITIONAL VALUES

Per 100 ml 1 serving (15 ml) *%RDI (15 ml)
Energy value 824 kcal / 3389 kj 123 kcal / 3389 kj 6%
Total fats 91.6 g 13.4 g 20%
– saturated fatty acids 16.2 g 2.4 g 12%
– monounsaturated fatty acids 67.60 g 11.57 g -
– polyunsaturated fatty acids 7.79 g 11.57 g -
Total carbohydrates 0.00 g 0.00 g 0%
– sugars 0.00 g 0.00 g 0%
Fiber 0.09 g 0.00 g 0%
Proteins 0.00 g 0.00 g 0%
Salt 0.00 g 0.00 g 0%
Vitamin E 13 mg 1.95 mg 16%

* %RDI = percentage of the recommended daily intake (for an adult on 2000 kcal).

Content of hydroxytyrosol, tyrosol and derivatives – 8 mg / 20 g

One serving = 15 ml (the package contains approx. 33 servings).

Complete composition

Main ingredients

Extra virgin olive oil from Koroneiki olive variety. Organic quality.

Profile of Bioactive Polyphenols and Antioxidants

This extra virgin olive oil is a source of high-quality healthy fats, antioxidants, and vitamin E. It perfectly complements salads, baking, and cold cuisine, contributing to long-term cardiovascular well-being.

Oleocanthal

170 mg/kg. A polyphenolic compound. Scientific studies suggest it may have beneficial effects within the body's natural anti-inflammatory response.

Oleacein

132 mg/kg. A powerful natural antioxidant. It is being researched for its possible effects on cardiovascular health.

Oleocanthal + Oleacein 

Index D1 – 302 mg/kg. The sum of two key polyphenols, whose higher content may indicate stronger biological activity of the oil.

Ligstroside aglycon 

Monoaldehyde form – 49 mg/kg. A derivative of ligstroside, which exhibits antioxidant effects. It is studied for its potential influence on the vascular system and overall cardiovascular health. 

Oleuropein aglycon

Monoaldehyde form – 63 mg/kg. A polyphenolic component present in olive oil. Scientific findings associate it with possible contributions to natural immunity.

Ligstroside aglycon

Dialdehyde form – 228 mg/kg. A highly active form of ligstroside. Laboratory research shows its antioxidant properties and possible effects on cellular defense mechanisms.

Total tyrosol derivatives 

468 mg/kg. A group of compounds derived from tyrosol. Together, they contribute to the antioxidant profile of olive oil. 

Hydroxytyrosol derivatives

331 mg/kg. Naturally occurring substances studied in the scientific literature for their effects on the vascular system and cellular protection.

Total polyphenols

799 mg/kg. Higher concentrations are considered an indicator of quality and the content of naturally occurring bioactive compounds.

Result

This extra virgin olive oil is naturally rich in polyphenols such as oleocanthal and oleacein, which contribute to the protection of blood lipids from oxidation. It also contains vitamin E and monounsaturated fats that support normal cholesterol levels – ideal for daily use in both cold and hot cuisine.

FAQ

How to recognize a truly high-quality extra virgin olive oil?

Extra virgin olive oil is the highest quality form of olive oil – produced by mechanical pressing without chemicals, at temperatures up to 27 °C. You can recognize it by its distinctive aroma, fruity taste, and a mild bitterness or peppery sensation on the tongue.

It is important to choose oil with a clearly stated origin, ideally from a single variety, with analytical values (polyphenols, acidity), and preferably in a dark glass bottle.

At PraveBio.cz, we specialize in quality. In most cases, we cooperate directly with producers – to ensure we know exactly what we are selling. We offer only brands with clear origin and an honest story.

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Why can olive oils from private labels and white labels be risky?

Private labels and so-called white labels refer to products manufactured for e-shops, influencers, or retail chains under their own brand – often without a clear stated origin or control over the production itself.

The main problem is low transparency: The label usually does not reveal where the olives came from, how they were harvested or processed – or if anyone even verified the quality of the final oil. It is also common that the bottle contains a blend of cheaper oils or oil with minimal beneficial substances.

Unfortunately, frauds still happen today. For example, in 2024 the British newspaper The Guardian reported a record number of cases where so-called lampante oil – usually intended only for technical use and not suitable for eating – was sold as “extra virgin.”

Czech inspections also warn about these problems. The State Agricultural and Food Inspection Authority (SZPI) regularly uncovers oils that do not meet declared quality. An overview of non-compliant products can be found, for example, at Potraviny na pranýři.

If you care about what you put on your plate, we recommend choosing oils from verified producers (as in our e-shop) who clearly state origin, processing method, and lab tests.

Not every olive oil with a nice label is honest – but good oil is recognized by the details.

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What is the difference between artisan and industrially produced olive oil?

Artisan olive oil comes from smaller mills where olives are processed within hours after harvest – usually manually and from a single specific region. Such oil preserves the natural sensory profile, has a high polyphenol content, and a clearly traceable origin. You can taste freshness, fruitiness, and a subtle pepperiness.

In contrast, industrially produced olive oils (often under private labels or large commodity brands) tend to be blends of oils from various countries and harvests. The result is a product that lacks unique flavor characteristics and often nutritional quality.

This crucial difference is also highlighted by Giampaolo Sodano, president of Oil Masters, who calls for the difference between artisan and industrial oil to be clearly marked on the label. According to him, consumers should always know what they buy – and the origin of the oil they consume.

At PraveBio.cz, we specialize in quality. In most cases, we cooperate directly with producers – to ensure we know exactly what we are selling. Only brands with clear origin and honest stories.

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Does olive oil contain oxalates?

Extra virgin olive oil is considered a food with very low oxalate content. According to data from OxalateContent.com, one tablespoon of olive oil contains approximately 0 mg of oxalates, making it suitable even for people following a low-oxalate diet.

Oxalates are natural substances found in some foods, such as spinach, beets, or nuts, and may contribute to kidney stone formation in sensitive individuals.

The production process of olive oil, which involves pressing and separating the oil from the solid parts of olives, effectively removes most of the oxalates that could be present in the olives themselves.

For those monitoring oxalate intake, it is important to choose oils with clearly traceable origin and minimal processing, such as extra virgin olive oil.

Avoid anonymous blends or refined oils, which may lack the necessary quality and transparency. For more information about oxalate content in foods, visit OxalateContent.com.

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Can extra virgin olive oil work as a natural alternative to ibuprofen?

Extra virgin olive oil with a high content of polyphenols – especially oleocanthal and oleacein – has natural anti-inflammatory effects, which are the subject of numerous studies.

These substances can act similarly to ibuprofen – for example, by blocking the COX‑1 and COX‑2 enzymes that mediate inflammatory response. According to some studies, EVOO can help reduce pain, swelling, and chronic inflammation.

However, it is important to say that olive oil does not replace medication and its effect is not immediate. Regular daily consumption of 1–2 tablespoons of quality EVOO can, however, have a long‑term positive impact on health – especially for people with lifestyle‑related inflammation, joint pain, or chronic fatigue.

As always: choose only verified oil with declared polyphenol content and monitor your body's reaction.

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Is extra virgin olive oil suitable for histamine intolerance?

Extra virgin olive oil (EVOO) is naturally a low-histamine food and is recommended by most experts even for histamine intolerance or mast cell activation syndrome (MCAS).

Thanks to its polyphenol content – mainly oleocanthal and hydroxytyrosol – EVOO has strong anti-inflammatory and antioxidant effects. Some studies show it even stimulates the activity of the DAO enzyme, which breaks down histamine in the body.

Quality is key, however. Fake or blended oils (often sold under private labels without clear origin) may contain residues of other substances or cause unwanted reactions.

Therefore, we recommend choosing pure EVOO with traceable origin and certification, storing it in darkness, and ideally consuming it cold.

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What does “cold pressed” or “first pressing” really mean for olive oil?

In modern olive oil production, olives are pressed only once – the term “first pressing” is now mostly a marketing leftover. More important is “cold pressing”, meaning the extraction temperature did not exceed 27 °C.

This helps preserve nutritional value, aroma, and polyphenols. If this label is missing on the bottle, the oil may have been produced at higher temperatures – losing those properties.

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Why are olive oils with high polyphenol content more expensive?

Olive oils with high polyphenol content (more than 250 mg/kg) result from a demanding and precise production process focusing on quality, freshness, and health benefits.

  • Early harvest of less ripe olives ensures higher polyphenol content but means lower yield – less oil per kilogram of olives.
  • Manual picking and quick processing within hours after harvest are crucial to preserve antioxidants and freshness.
  • Polyphenol-rich varieties have pronounced health benefits but provide lower volume – their cultivation is more demanding and yields are smaller.

Due to these factors, the price is higher – but the health value is incomparable.

According to the European Food Safety Authority (EFSA), olive oils with at least 5 mg hydroxytyrosol and its derivatives per 20 g of oil contribute to the protection of blood lipids from oxidative stress. Source: HighPhenolic.com

As confirmed by Aristoleo and Olive Wellness Institute, these oils are made by visionary producers who have moved away from conventional production focusing on measurable quality and functional health value.

At PraveBio.cz, we cooperate exclusively with verified producers who manufacture true extra virgin olive oils with proven polyphenol content and transparent origin. That way, we know exactly what we offer – and why it makes sense.

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What health benefits do polyphenols in olive oil have?

Polyphenols are natural compounds with strong antioxidant effects that help protect cells from oxidative stress and have positive effects on overall health.

According to studies from UC Davis Olive Center, EFSA, and Harvard School of Public Health, polyphenols contained in extra virgin olive oil can:

  • Lower blood pressure and LDL (“bad”) cholesterol levels
  • Protect blood vessels from damage and support heart health
  • Act anti-inflammatory and help regulate immune response
  • Slow cellular aging and enhance cell resilience to stress

The European Food Safety Authority (EFSA) approved the health claim that olive oil containing at least 5 mg hydroxytyrosol and its derivatives per 20 g of oil contributes to the protection of blood lipids from oxidative stress.

To truly benefit, a daily intake of approximately 20 g (2 tablespoons) of quality extra virgin olive oil with polyphenol content over 250 mg/kg is recommended.

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Why can olive oil taste bitter or pungent?

Bitterness and pungency are not defects – quite the opposite. They are natural sensory expressions of polyphenolic compounds, especially oleocanthal and oleacein.

Oleocanthal creates a peppery sensation in the throat (the so-called “cough reflex”), which may cause mild coughing – this is considered by ISHS a reliable sensory indicator of freshness and antioxidant content.

In high-quality extra virgin olive oils with high polyphenol content, this pungency is a sign of effectiveness. Regular consumers may find it unusual, but connoisseurs regard it as proof of therapeutic potential.

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How to properly use extra virgin olive oil?

For maximum effect, experts (e.g. UC Davis Olive Center) recommend consuming 1–2 tablespoons daily of quality olive oil – ideally cold.

You can use it, for example, in salads, on roasted vegetables, hummus, or even directly by the spoonful. Oils with a high polyphenol content not only have a stronger taste but also measurable health benefits – contributing to the protection of blood vessels, brain, and immunity.

For frying, we recommend using more common EVOO with higher heat stability, but oil with high polyphenol content is best preserved for direct consumption.

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How to replace butter or margarine with olive oil?

Extra virgin olive oil can easily be used instead of butter or margarine – both in cooking and baking. When replacing butter, use approximately ¾ the amount of olive oil.

For example, 100 g of butter corresponds to 75 ml of olive oil. This substitution is nutritionally advantageous – it reduces saturated fats and adds valuable antioxidants. Suitable also for vegan recipes.

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What else can olive oil be used for outside the kitchen?

Olive oil has broad uses in body care as well. Thanks to its high content of antioxidants and vitamin E, it is suitable for:

  • hydrating dry skin (including lips and elbows),
  • after-sun or post-shaving treatment,
  • nourishing hair ends and eyebrows,
  • nail cuticle care,
  • and as a gentle make-up remover.

However, we recommend choosing only oils with verified origin and without chemical additives. Pure extra virgin olive oil in organic quality is an ideal choice even for sensitive skin.

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Additional parameters

Category: Olive oil
EAN: 5214002939045
Manufactured by: Keramidenias, Ialisos Rhodes 85101 Greece
Country of origin: Greek, Rhodos
Vhodné pro: Gluten Fee-GMO Free-Vegan-Low Carb-Keto-Paleo
Volume: 500 ml

How extra virgin olive oil is made in Greece, Koroneiki?

Jak vybrat kvalitní extra panenský olivový olej?

MUDr. David Frej hovoří o důležitosti extra panenského olivového oleje.

What Happens When You Eat 2 TBSP of Olive Oil Daily?

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HOLISTON is an unfiltered, limited-production extra virgin olive oil that is rich in polyphenols and offers high nutritional value, which is abundant in the Greek soil and climate.

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