Refined oil blended with extra virgin olive oil aims to provide a more affordable oil with a higher smoke point for cooking and a slightly more robust flavor than purely refined oil, but it lacks the high antioxidant and anti-inflammatory benefits found in 100% extra virgin olive oil (EVOO) due to the nutrient stripping during the refining process. While the added EVOO offers some health advantages, the overall nutritional profile is significantly lower than pure EVOO, which is rich in beneficial compounds like polyphenols and vitamin E.