Olive oil, extracted from the fruit of the olive tree, is a cornerstone of Mediterranean cuisine and is renowned for its health benefits. Rich in monounsaturated fats, particularly oleic acid, olive oil helps lower bad cholesterol levels, reducing the risk of heart disease. It also contains antioxidants like vitamin E and polyphenols, which combat oxidative stress and inflammation. Versatile in the kitchen, it can be used for sautéing, dressing salads, and as a dip. For optimal benefits, extra virgin olive oil is recommended due to its high quality and rich flavor.