Ya'll really need to read Sydney MacDonald Baker's book "Detoxification and Healing" for its superb chapter on oils and fats. Refined oils, vegetable oils, were never meant to be consumed by human beings. They are one step away from plastic. Use butter, ghee, lard, duck fat, olive oil, and grapeseed oil for some things, and take plenty of fish oil or eat the small fishes (sardines, etc).