Polyphenols are natural antioxidant compounds found in high-quality extra virgin olive oil. They contribute to the distinctive peppery finish and gentle bitterness of early-harvest oils — and are closely linked to many of EVOO’s recognised health benefits.
Polyphenol content is measured in milligrams per kilogram (mg/kg). While many standard olive oils fall well below meaningful antioxidant levels, carefully harvested, premium oils can test significantly higher.
At The Good Oil Club, our curated selection typically ranges from 350 mg/kg through to 900+ mg/kg, depending on cultivar, harvest timing and seasonal conditions.
Polyphenol levels naturally vary from season to season. We prioritise freshness, integrity and peak harvest quality — ensuring every oil delivers both exceptional flavour and substantial antioxidant presence.