Olive oil is a healthy choice, at least as far as fats are concerned, according to the Mayo Clinic.

"Olive oil contains monounsaturated fat, a healthier type of fat that can lower your risk of heart disease by reducing the total and low-density lipoprotein (LDL, or "bad") cholesterol levels in your blood," says Mayo Clinic nutritionist, Katherine Zeratsky, R.D., L.D.

According to the Food and Drug Administration (FDA), consuming about two tablespoons (23 grams) of olive oil a day may reduce your risk of heart disease. "You can get the most benefit by substituting olive oil for saturated fats rather than just adding more olive oil to your diet," says Zeratsky.

All types of olive oil contain monounsaturated fat. Extra-virgin or virgin olive oils are the least processed forms, so they're the most heart healthy. Those types contain the highest levels of polyphenols, a powerful antioxidant that also can promote heart health, she adds.