11/06/2026
We talk a lot about what olive oil does for the heart. But what about the brain?
This is the part that stops people in their tracks.
A randomised clinical trial published in JAMA Internal Medicine found that a Mediterranean diet supplemented with four tablespoons of extra virgin olive oil per day significantly improved memory and executive function in older adults compared with a low-fat control group.
A further meta-analysis confirmed that high-phenolic extra virgin olive oil is associated with improvements across several cognitive domains and with slower progression of mild cognitive decline.
The mechanism goes deep. The phenolic compounds in EVOO, especially hydroxytyrosol and oleocanthal, cross the blood-brain barrier and interact directly with the brain's neurological systems. Oleocanthal has also been shown in research to help clear the amyloid plaques associated with Alzheimer's disease.
But none of this works with old oil, or oil that has been sitting in a warm warehouse or under bright lights. Scientific studies confirm that polyphenols degrade during storage, with degradation increasing considerably at room temperature. The compounds that protect your brain are the same ones that disappear first.
At Cooperativa Santa Isabel in Torres, Jaén, no olive spends more than 24 hours from tree to oil. Cold extracted, milled at source, sealed at its peak. What leaves the grove in Torres is exactly what arrives in your kitchen.
This photo was taken from my family's grove last month. Torres in the valley below, Cooperativa Santa Isabel just visible to the left, and olive trees as far as you can see. This is where Señorío de Camarasa begins.
PDO Sierra Mágina certified. Single variety Picual. No brokers, no blending, no middlemen.
Did you know this before? The brain health research on EVOO is one of the most underreported stories in nutrition.
🛒 www.xauenoliveoil.co.uk