Olive OilThe Mediterranean diet, strongly recommended from health professionals and dieticians all over the world, uses from centuries oil from olives as its principal fat.The extra-virgin olive oil classification requires it must not contain more than 1% acidity. While olive groves and oil production have reached many countries in the world, Italy is still considered the foremost producer of high quality olive oil. Some of the same groves and estates of Italy have been producing olive oil for hundreds of years, continuing a time honored family tradition appreciated throughout the entire world. It's easy to taste the difference.