Also olive oil is a rich source of fat soluble vitamins A, D, K and especially E which protect the body from some cancers (eg colon and breast) as well as osteoporosis. The vitamins in question and the valuable polyphenols in olive oil, are found only in virgin olive oils and refined to almost completely destroyed. Olive oil, among other things, that the antioxidant action of delaying the aging of cells, helps in digestion and absorption of calcium and improves the health of our skin.
Olive oil is best eaten raw so the body can absorb all the nutritional substances. Even in frying, olive oil is considered the most appropriate, since it is the most resistant to high temperatures and oxidation.