Extra Virgin Olive Oil Benefits: What Sardinians and Ikarians Know About Healthy Fats
Extra virgin olive oil is a cornerstone of the Mediterranean diet and a daily staple in both Sardinia and Ikaria, two of the world's five Blue Zones where people live exceptionally long, healthy lives. Its unique combination of monounsaturated fats, polyphenols, and antioxidants supports heart health, reduces inflammation, and is strongly associated with longevity. Regular consumption of high-quality extra virgin olive oil, as part of a plant-forward diet, is one of the most evidence-backed dietary habits for healthy ageing.
What makes extra virgin olive oil different from other olive oils?
Extra virgin olive oil is the least processed grade, extracted mechanically without heat or chemicals, which preserves its natural polyphenols and vitamin E. Virgin olive oil is also mechanically extracted but has slightly higher acidity and fewer polyphenols. Refined or "light" olive oils undergo industrial processing that strips away most beneficial compounds, leaving a neutral oil with a higher smoke point but minimal health benefits.
Is olive oil healthy for everyday cooking?
Yes, extra virgin olive oil is healthy for everyday cooking, including gentle sautéing and roasting at moderate temperatures. Its high monounsaturated fat content makes it more stable than many seed oils, and its antioxidants protect the oil from oxidation during heating. Research from the PREDIMED trial and other large studies consistently links daily extra virgin olive oil use with lower cardiovascular risk, better blood sugar control, and reduced inflammatory markers.
How much olive oil should you eat for longevity benefits?
Most Blue Zone researchers and nutrition scientists suggest around 30 to 60 millilitres (two to four tablespoons) of extra virgin olive oil per day for optimal benefits. This aligns with the amounts traditionally consumed in Sardinia and Ikaria, where olive oil is used generously on vegetables, beans, bread, and salads. The Adventist Health Study and European cohort studies show a dose-response relationship, with the greatest benefits seen at the higher end of this range when replacing saturated fats.
What do Sardinians and Ikarians teach us about olive oil?
Sardinians and Ikarians treat extra virgin olive oil as a food, not just a cooking fat, drizzling it liberally over cooked dishes, raw vegetables, and hearty bean stews at the table. In Sardinia's mountainous villages, families often produce their own oil from ancient olive varieties rich in polyphenols. On Ikaria, the oil accompanies wild greens, lentils, and fermented dairy, creating meals where the fat helps absorb fat-soluble vitamins from plants. Both cultures harvest early, press quickly, and consume the oil fresh, maximising its bioactive compounds.
| Olive oil grade | Processing | Polyphenol content | Best use |
|---|---|---|---|
| Extra virgin | Cold-pressed, no heat or chemicals | Highest (150–500+ mg/kg) | Drizzling, dressings, gentle cooking |
| Virgin | Mechanical extraction, slightly higher acidity | Moderate | Cooking where flavour matters less |
| Refined / "Light" | Industrial refining, deodorised | Very low | High-heat frying only |
How to choose the best olive oil in the UK
Look for a harvest date within the last 18 months, a dark glass bottle or tin, and a single estate or cooperative origin. Italian, Greek, and Spanish oils can all be excellent if they meet these criteria. Certifications such as PDO (Protected Designation of Origin) or PGI (Protected Geographical Indication) add assurance of traditional methods. At The Blue Zone Food Store, we select oils from small producers who harvest early and press within hours, preserving the polyphenol content that makes extra virgin olive oil so valuable for longevity.
Simple ways to use extra virgin olive oil daily
Start with a tablespoon over porridge or toast at breakfast, use it to dress every salad and roasted vegetable tray, and finish soups, stews, and grilled fish with a generous drizzle at the table. Blend it into hummus, whisk it into vinaigrettes with lemon and herbs, or simply serve it in a small dish with good bread and a pinch of sea salt. The goal is to make it a visible, enjoyable habit rather than a hidden ingredient.
Bringing a bottle of early-harvest, high-polyphenol extra virgin olive oil into your kitchen is one of the simplest, most delicious steps you can take towards eating like the world's longest-lived people. Explore our pantry range at The Blue Zone Food Store and taste the difference that traditional craftsmanship makes.
Frequently asked questions
Is extra virgin olive oil good for you?
Yes, extra virgin olive oil is widely recognised as one of the healthiest fats. Its high content of monounsaturated fats and polyphenols supports heart health, reduces inflammation, and is linked to longer life expectancy in large population studies.
How much extra virgin olive oil per day is recommended?
Most research suggests 30 to 60 millilitres (two to four tablespoons) daily for optimal benefits, which matches traditional intake in Blue Zone regions like Sardinia and Ikaria when used as the primary added fat.
Can you cook with extra virgin olive oil?
Yes, extra virgin olive oil is stable enough for everyday cooking including sautéing and roasting at moderate temperatures. Its antioxidants protect it from oxidation, though very high-heat deep frying is better suited to refined oils.
What is the best olive oil to buy in the UK?
The best olive oil in the UK is extra virgin, harvested within the last 18 months, sold in dark glass or tins, and ideally from a single estate or cooperative with PDO or PGI certification.
Why do Blue Zones use so much olive oil?
Blue Zone regions like Sardinia and Ikaria use olive oil as their main added fat because it delivers monounsaturated fats and polyphenols that protect against heart disease, support metabolic health, and enhance absorption of nutrients from vegetables and legumes.