Olive oil has been a mainstay of the Mediterranean diet for thousands of years and is well known as a heart healthy fat. One study suggests that consuming olive oil may also help prevent strokes in older people.
Olive oil comes from olives, corn oil comes from corn and canola oil comes from … canola? Right… sort of. Canola oil is a genetically modified food made from a hybridized version of the rapeseed plant which is a member of the mustard or cabbage family.