Olive oil's heart effect located

Scientists say they have pinpointed the micronutrients in olive oil that make it a good heart protector.

Mediterranean diets have long been hailed as cutting heart attack risk.

A team of Spanish researchers believes this is partly down to compounds called phenols that have anti-inflammatory, antioxidant and clot-preventing powers.

Virgin or extra virgin olive oils are best because they have the highest phenol content, the Journal of the American College of Cardiology reports.

Source: BBC News