Even so, there are no definitive studies that show extra-virgin olive oil has a greater ability than refined oil to prevent heart problems, cancer or other diseases. Small laboratory-based experiments suggest that higher concentrations of phenols may provide extra antioxidant effects. In contrast, regular, highly processed olive oils lose these chemicals. This protects chemicals in the oil called phenols. Extra-virgin olive oil is pressed mechanically from ripe olives and processed without high heat or chemical solvents. Still, extra-virgin olive oil does offer something extra that regular olive oil does not. In fact, observational studies have shown a link between lower risks of cardiovascular disease, some cancers, and even dementia in people who consume higher amounts of olive oil than those who use little or none. The health benefits of olive oil have been attributed to its antioxidant and anti-inflammatory properties. When substituted for saturated fat, monounsaturated fats help lower your "bad" LDL cholesterol. Regardless of the type, olive oil is high in monounsaturated fatty acids, containing about 75% by volume. The diet's nutritional benefits probably come from various sources, but the generous use of olive oil appears to be a key contributor. Many studies continue to confirm the health benefits of the Mediterranean diet, which cuts the risk of heart disease and stroke. I know olive oil is part of a heart-healthy diet, but is extra-virgin olive oil healthier than regular olive oil?Ī.
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