My recommendation:Use extra-virgin olive oil as your main kitchen oil! To make sure you are using oil with genuine extra-virgin qualities we recommend choosing a domestic olive oil rather than imported, and with the seal of the California Olive Oil Council on the label, like the widely available California Olive Ranch. Better still, buy locally-squeezed olive juice from Oregon Olive Mill in Dayton, Oregon. If you are interested in buying imported extra virgin olive oil we suggest consulting with a knowledgeable local importer like Jim Dixon at Real Good Food. We include about 100 recipes using extra-virgin olive oil in Good Food, Great Medicine (3rd edition), and discuss the many reasons to choose it instead of other vegetable oils on pages 26 and 47-48.
Miles Hassell MD
García-Gavilán, J.F. et al. Clinical Nutrition 2017;doi: 10.1016/j.clnu.2016.12.030