What are polyphenols in extra virgin olive oil, and why do they make a difference? January 24, 2026 0 6 What are polyphenols in extra virgin olive oil, and why do they make a difference? What are polyphenols in extra virgin olive oil and why do they make a difference? [caption id="attachment_32506" align="aligncenter" width="600"] Premium Early Harvest Picual EVOO, Elogio[/caption] When we talk about real extra virgin olive oil (EVOO), there's one word that appears more and more and that is worth understanding well: polyphenols. It's not a fad, it's not empty marketing, and it's not a concept reserved only for experts. Polyphenols are, quite simply, one of ...