The Mediterranean diet, led by extra virgin olive oil, reduces the risk of circulatory problems in the extremities, lowers the risk of heart attack, stroke and also death from cardiovascular causes, and improves the cognitive capacity of older people.
Scientific researchers specializing in medical prevention recommend consuming at least four tablespoons of extra virgin olive oil a day.
http://www.elmundo.es/salud/2014/01/22/52de84eae2704e5a068b4579.html