What’s with Italians and Olive Oil?? Olive oil is one of the principal source of cooking oils, used all over the Mediterranean region for centuries. Olive oil is the best edible oil in terms of palatability, stability, lipid profile, and safety profiles! Plenty of linoleic (omega-6) and linolenic (omega-3) essential fatty acids, it is also a great source of Vitamin E and K and a load of antioxidants. This oil, part of the Mediterranean diet, is a traditional fat that has been a dietary staple for some of the world’s healthiest populations.