Olive oil is rich in omega-3 fatty acids, a type of polyunsaturated fat found in fish and some plant foods. Unsaturated fatty acids, whether monounsaturated or polyunsaturated, if you eat them instead of saturated fatty acids, you can lower your levels of bad cholesterol (which decreases your risk of heart disease). Saturated fat found mostly in animal products and in palm and coconut oil is the main dietary cause of high blood cholesterol, according to the American Heart Association. Olive oil is packed full of beneficial antioxidants that can lower your “bad” (LDL) cholesterol while leaving your “good” (HDL) cholesterol untouched. The cholesterol-lowering effects of olive oil are even greater if you choose extra-virgin olive oil, which means the oil is less processed and contains more heart-healthy antioxidants.