Dietary high-polyphenols extra-virgin olive oil is effective in reducing cholesterol content in eggs.

Background: Extra-virgin olive oil (EVOO) represents an important food in Mediterranean diet due to its favorable effects on human and animal health derived from the consumption of polyphenols. We studied the effects of dietary EVOO differing in polyphenols levels on egg quality.

Methods: A total of 150 laying hens were allotted into three groups over 10 weeks of the experimental period.