Phenolic Content of Virgin Olive Oil Improves Ischemic Reactive Hyperemia in Hypercholesterolemic Patients
I usually recommend to patients to use the cheap olive oil for cooking and the expensive stuff for other uses. Much of the antioxidant compounds are destroyed by heating, so spending extra money on the expensive stuff is pointless if the oil is heated.
This article finds that the compounds in the less processed olive oil (as is typical in the Mediterranean diet) has a beneficial effect on our blood vessels.