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 standardized for oleuropein which is its main active constituent. Oleuropein is metabolized to hydroxytyrosol in the body, which is considered one of the most powerful antioxidants available. Antioxidant activity is integral to healthy immune system function and cellular health. Olive leaf extract is used clinically to stimulate the immune system and to combat bacterial and viral infections. It is the ideal formula for someone looking for broad-spectrum immune support and antioxidant protection.
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:
Improved Cardiovascular Health
Research shows that olive leaf extract helps prevent LDL (bad) cholesterol from building up in your arteries. This effect helps increase blood flow and lower blood pressure, reducing your risk of heart disease.
A study using rats also points to olive leaf extract’s effectiveness in helping restore a normal heartbeat in those with arrhythmia, although further research with human subjects would be more conclusive.
Lower Risk of Diabetes
The antioxidants in olive leaves can lower your blood sugar and help stabilize it to maintain healthy levels. Researchers find that this effect helps treat people with diabetes and may prevent you from developing the disease.
Studies also show that olive leaf extract can reduce your body’s insulin resistance, one of the biggest risk factors for diabetes.
Stronger Immune System
The Mediterranean diet is associated with a lower rate of chronic diseases — including cancer, heart disease, Parkinson’s, and Alzheimer’s. Olive leaf extract supports this trend thanks to oleuropein’s ability to attack and neutralize viruses and bacteria.
Some studies indicate oleuropein may stop cancer cell growth. Olive leaf extract may also reduce the severity and duration of upper respiratory infections.
Weight Management
More research is needed in humans, but early studies show that the oleuropein in olive leaf extract prevents unwanted weight gain and reduces the risk of obesity.
In laboratory tests, oleuropein lowered body fat and weight gain in animals fed high-cholesterol and high-fat diets. It also reduced food intake, suggesting olive leaf extract can also help manage appetite and overeating.
