answer:The fat content differences between the poly- and monounsaturated oils probably are not sufficient to have any significant effect on your health in the long run. So your best bet is to use a variety of oils judiciously. When considering your options, keep in mind that Canola oil is lowest in the saturated fat that clogs our arteries, while olive oil is highest in monounsaturates. One fact remains a constant. All cooking oils are 100 percent fat—plain and simple. And most of us need to curb the total amount of fat in our diet. So with cooking oil, remember, less is more.