Undoubtedly the leading ingredient of the Mediterranean diet, extra virgin olive oil is not only a delicious seasoning but also a real food with nutritional values of its own. Its therapeutic effect depends not only on its particular chemical structure - 54-83% monounsaturated fatty acids - but especially on the fact that it is the only oil extracted from a fruit by solely mechanical means without chemical processes, preservatives or aromas added. It also provides easily digested energy to athletes and increases the vitality of the elderly. It is suitable for use in all diets, and improves well-being. It is also recommended for the diet of babies.