Olive Oil Guide

Genuine extra virgin olive oil in dark glass beside a pale imitation in clear glass, with the UC Davis Olive Center finding that 69% of imported olive oil fails the extra virgin standard

Olive Oil Fraud: The Industry Problem and How t...

Olive oil is one of the most faked foods in the world. UC Davis testing found that the majority of imported extra-virgin olive oil sold at major US retailers did...

Olive Oil Fraud: The Industry Problem and How t...

Olive oil is one of the most faked foods in the world. UC Davis testing found that the majority of imported extra-virgin olive oil sold at major US retailers did...

Simplified inflammation blood panel showing hs-CRP, IL-6, TNF-alpha, and sICAM-1 markers with downward arrows beside a bowl of extra virgin olive oil, illustrating how olive oil reduces inflammation markers in clinical trials

Olive Oil and Inflammation Markers: What Blood ...

You can't feel chronic inflammation — it only shows up in a blood test. Researchers have been measuring exactly what happens to those numbers when people add olive oil to...

Olive Oil and Inflammation Markers: What Blood ...

You can't feel chronic inflammation — it only shows up in a blood test. Researchers have been measuring exactly what happens to those numbers when people add olive oil to...

Side-by-side bottles of unfiltered and filtered extra virgin olive oil showing the color and clarity difference, with unfiltered appearing amber and filtered appearing golden-green

Filtered vs Unfiltered Olive Oil: Which Is Bett...

Unfiltered olive oil starts with more polyphenols than filtered oil from the same pressing — but it also contains enzymes that actively degrade those polyphenols from the moment it leaves...

Filtered vs Unfiltered Olive Oil: Which Is Bett...

Unfiltered olive oil starts with more polyphenols than filtered oil from the same pressing — but it also contains enzymes that actively degrade those polyphenols from the moment it leaves...

Molecular diagrams of oleic acid with one double bond and linoleic acid with two double bonds beside a bowl of extra virgin olive oil, illustrating why olive oil is more heat-stable than seed oils

Oleic Acid Explained: The Monounsaturated Fat B...

Oleic acid is the main fat in extra virgin olive oil — it makes up 65 to 83% of the oil by weight, which makes it the largest single thing...

Oleic Acid Explained: The Monounsaturated Fat B...

Oleic acid is the main fat in extra virgin olive oil — it makes up 65 to 83% of the oil by weight, which makes it the largest single thing...

Dark glass bottle of extra virgin olive oil on an olive wood surface with a ceramic bowl of golden-green oil and a fresh olive branch, soft natural light

How to Store Olive Oil to Maximize Freshness an...

You spent money on good olive oil. Where you keep it determines whether those polyphenols survive long enough to benefit you. Most people break three storage rules without knowing it...

How to Store Olive Oil to Maximize Freshness an...

You spent money on good olive oil. Where you keep it determines whether those polyphenols survive long enough to benefit you. Most people break three storage rules without knowing it...

Four bowls of extra virgin olive oil showing color change from golden-green to pale yellow at Raw, 120°C, 150°C, and 170°C, visualizing polyphenol retention percentages during cooking

Does Heating Olive Oil Destroy Its Polyphenols?

Yes, heating olive oil reduces its polyphenol content. At a gentle sauté temperature, you lose around 40%. At a hot stir-fry temp, around 75%. But here is what most people...

Does Heating Olive Oil Destroy Its Polyphenols?

Yes, heating olive oil reduces its polyphenol content. At a gentle sauté temperature, you lose around 40%. At a hot stir-fry temp, around 75%. But here is what most people...