In fact, in a study of people with high cholesterol, blood samples showed less potential for harmful clotting just two hours after the study subjects ate a meal with olive oil. This oil is a nutritional superstar -- rich in antioxidants and heart-healthy monounsaturated fats that help lower "bad" LDL cholesterol and increase "good" HDL. If you’re searching for the best olive oil for that cause, always make sure you’re buying HIGH PHENOLIC extra virgin olive oil. Reverse cholesterol transport is the process in which HDL (good) removes cholesterol … The Mediterranean diet enriched with extra virgin olive oil improved HDL (good) functions, such as reversing cholesterol transport, providing antioxidant protection, and enabling vasodilation. Making extra virgin olive oil a key part of your daily diet is a powerful way to expose your body to all the nutritional benefits found in polyphenols, decreasing your levels of bad cholesterol. Best overall olive oil California Olive Ranch Extra Virgin Olive Oil. See: Best Foods for Brain Health. Olive Oil . $10 Five of our EVOO experts mentioned this California Ranch olive oil as a pantry go-to. The book, published in 2011, reveals that some unscrupulous olive oil dealers mix olive oil with vegetable oils, such as soybean or sunflower seed oil.