5 things you may not know about olive oil - CNN.com

Nutritionists have long touted the heart-healthy benefits of extra-virgin olive oil.

Recently, researchers found that consuming a Mediterranean diet heavy in olive oil can help lower some heart risks. Consuming more than four tablespoons a day can significantly lower your risk of having a heart attack, suffering from a stroke or dying of heart disease, according to the recent study published in the New England Journal of Medicine.