According to modern sources it most definitely is. The reasons appear to be simple because they are, good Olive Oil is packed with super good bio-active ingredients that are not expelled during or after the cooking process so the health benefits are preserved and plentiful. Super ingredients, including, vitamin K and vitamin E actually move into the foods that are being grilled or baked.
It’s also cerebral friendly with Omega 6 and Omega 3 being of huge benefit to the brains of those who consume quality Olive Oils. And last but not least , Olive Oil contains that really healthy fat that healthy people love to brag about. Rightfully so perhaps , healthy fats not only aid in the process of ridding the body of unhealthy fats, they also lubricate the mind and serve as a huge benefit to the calculative mechanism called the brain. Similar to avocados, those healthy fats lubricate the the brain as well as provide choice-premium-energy to the organ of reasoning, thus promoting brain health. If the brain is healthy , the body is healthier, making one's vitality more available to one’s self. In essence, a good Olive Oil helps to diversify and enhance overall well being.