The olive leaf is a staple of the Mediterranean diet, which scientists study for its potential to prevent chronic diseases. Research points to lower rates of illnesses and cancer-related deaths among populations that follow this diet. The positive effect is due in part to the powerful and health-boosting benefits of the olive leaf.
Olive leaf extract is a concentrated dose of the nutrients in olive tree leaves. It’s a potent source of antioxidants that support your immune system.
By fighting cell damage that causes disease, antioxidants work to reduce your risk of many illnesses — but research shows that this activity in olive leaf extract may contribute to a range of other health benefits.
The antioxidants in olive leaf extract are mainly polyphenols. Scientists believe these plant-based nutrients play a role in preventing conditions like cognitive decline, cancer, and osteoporosis.
Olive leaf also contains a uniquely powerful polyphenol called oleuropein. Studies show that in addition to its antioxidant activity, oleuropein has anti-inflammatory, antiviral, and antimicrobial effects. These properties point to research-backed health benefits like: