Extra virgin olive oil contains oleocanthal as one of its main polyphenols – the one that can cause a burning sensation in the back of the throat. Researchers from the University of Monroe-Louisiana conducted a study that found oleocanthal had a modulating effect on an important part of the immune system, called C3AR1. Unfortunately, if C3AR1 becomes overactive, it causes inflammation in the brain that can lead to Alzheimer’s. Oleocanthal helps reduce this over activity and maintain the normal activity of C3AR1. This is just another reason to consume real extra virgin olive oil.