Olive Oil Guide

Oleuropein molecular structure converting to hydroxytyrosol, the key antioxidant polyphenol in extra virgin olive oil.

Oleuropein: What This Compound Does for Your He...

Oleuropein is the dominant polyphenol in unripe olives and the compound responsible for olive oil's characteristic bitterness. It can make up 6 to 9 percent of an unripe olive's dry...

Oleuropein: What This Compound Does for Your He...

Oleuropein is the dominant polyphenol in unripe olives and the compound responsible for olive oil's characteristic bitterness. It can make up 6 to 9 percent of an unripe olive's dry...

Olive oil weight management diagram showing oleic acid triggering OEA satiety signals in the small intestine and brain.

Can Olive Oil Help with Weight Management? The ...

The advice to cut dietary fat to manage weight was not well supported by evidence, and large-scale Mediterranean diet trials have confirmed this repeatedly. Olive oil, used as a primary...

Can Olive Oil Help with Weight Management? The ...

The advice to cut dietary fat to manage weight was not well supported by evidence, and large-scale Mediterranean diet trials have confirmed this repeatedly. Olive oil, used as a primary...

Early harvest olive oil polyphenol diagram showing cellular changes across three ripening stages: green olive, veraison, and fully ripe.

Early Harvest Olive Oil: What Changes at the Ce...

The olive tree produces polyphenols as defensive chemistry, and those levels are highest before the fruit ripens. As the olive matures, enzymes inside the fruit break down the dominant polyphenol...

Early Harvest Olive Oil: What Changes at the Ce...

The olive tree produces polyphenols as defensive chemistry, and those levels are highest before the fruit ripens. As the olive matures, enzymes inside the fruit break down the dominant polyphenol...

An elderly Mediterranean man pouring extra virgin olive oil over a Greek salad outdoors, illustrating the daily olive oil habits linked to longevity in Blue Zone centenarian populations.

Olive Oil and Longevity: Why Mediterranean Cent...

Two of the world's five Blue Zones are Mediterranean, and the one thing their centenarian populations share is olive oil at every meal — not as a garnish, but as...

Olive Oil and Longevity: Why Mediterranean Cent...

Two of the world's five Blue Zones are Mediterranean, and the one thing their centenarian populations share is olive oil at every meal — not as a garnish, but as...

Aerial view of Gulf of Edremit at golden hour, olive groves on Aegean hillsides below the Kaz Mountains in Ayvalik Turkey

The Ayvalık Olive Variety: Why It Produces Exce...

Not all olive varieties produce the same oil — and Ayvalık, grown along Turkey's Gulf of Edremit, is one of the most studied cultivars in the world for high-polyphenol production....

The Ayvalık Olive Variety: Why It Produces Exce...

Not all olive varieties produce the same oil — and Ayvalık, grown along Turkey's Gulf of Edremit, is one of the most studied cultivars in the world for high-polyphenol production....

Illustration of olive oil polyphenols intact at cold pressed temperatures below 27°C and breaking apart above the threshold

What Does 'Cold Pressed' Actually Mean? A Preci...

'Cold pressed' appears on olive oil bottles everywhere, but in the US it has no legal definition — any producer can use it on any bottle. In the EU and...

What Does 'Cold Pressed' Actually Mean? A Preci...

'Cold pressed' appears on olive oil bottles everywhere, but in the US it has no legal definition — any producer can use it on any bottle. In the EU and...