Extra Virgin Olive Oil Recipes What Is The Difference Between Olive Oil And "extra Virgin Olive Oil"? Is One More Healthy Than The Other?

What is the difference between olive oil and "extra virgin olive oil"? Is one more healthy than the other? - extra virgin olive oil recipes

I am a virgin of famous South Beach Diet Recommended "olive oil. Because olive oil is much cheaper in general, I wonder why we recommend extra virgin olive oil.