Olive oil
Olive oil is full of heart-healthy monounsaturated fats (MUFAs), which lower "bad" LDL cholesterol and raise "good" HDL cholesterol. It’s rich in antioxidants, which may help reduce the risk of cancer and other chronic diseases, like Alzheimer’s. Look for extra virgin oils for the most antioxidants and flavor. Drizzle small amounts on veggies before roasting; use it to sauté or stir-fry, in dressings and marinades, and to flavor bread at dinner in lieu of a layer of butter or margarine.