A type of fat molecule that has one unsaturated carbon bond in the molecule, also called a double bond. Oils that contain monounsaturated fats are typically liquid at room temperature but start to turn solid when chilled. Olive oil is an example of a type of oil that contains monounsaturated fats. Monounsaturated fats can help reduce bad cholesterol levels in your blood which can lower your risk of heart disease and stroke.
