Those living near the Mediterranean have long considered olive oil a beneficial element for one's heart. Thus the popularity of "the Mediterranean diet." Studies done have confirmed that monounsaturated olive oil is beneficial to the heart.

Research done at the Institute of Pharmacological Studies at the University of Milan in Italy performed by Petroni and Blasevich showed reduced blood platelet aggregation when olive oil was regularly used in the diet.

V. Petkov, a European researcher, regularly contributes articles for peer-review in U. S. scientific journals. He states that regular use of Olive Leaf helps maintain a healthy cardiovascular system and significantly reduces other heart problems.