Olive oil contains high levels of monounsaturated fatty acids (55-83%), known as oleic acid. In addition to supplying the body with a large number of calories, but also to adjust the ratio of high and low density lipoprotein cholesterol concentration in human plasma. Linoleic acid and linoleic acid are necessary for the human body, but the human body can not synthesize them, and excessive consumption is harmful to the human body. Olive oil contains oleic acid, linoleic acid and linoleic acid ratio is exactly the proportion of human needs, similar to breast milk, which is not available in other vegetable oils; at the same time, olive oil is rich in vitamins A, D, E, F, K components and carotene fat-soluble vitamins such as vitamins and antioxidants, etc., is very easy to be digested and absorbed by the human body.