Olives and olive oil contain fatty acids. Most of these acids are mono-unsaturated omega-6 (linoleic acid) oils that are essential for the body. Monounsaturated fats do not contain cholesterol. Therefore, unlike other oils, olive oil does not increase the cholesterol in the blood, on the contrary it keeps it under control. Antioxidants are extremely important, they neutralize the harmful substances in our bodies and prevent the destruction of the cell. People who use olive oil regularly, have an antioxidant-rich diet. Confirmed by many researches, olive oil can prevent heart diseases. Countries with high incidence of cardiovascular disease often consume saturated fats with high cholesterol levels. This harmful nutritional habit can be corrected by shifting to Mediterranean diet, and that is consuming olive oil. Olive oil is highly recommended to be consumed by cardiovascular patients because it regulates the cholesterol in blood. Besides, olive oil also regulates the ratio of omega-3 fatty acid to omega-6 fatty acid. It is very important to consume omega-3 and omega-6 fatty acids in a certain extent. Without a balance in this ratio, the risk of developing illnesses and the progression of many diseases involving the heart and immune system, including cancer, will be increased. Due to these reasons, many people find health with olive oil.