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A new study found that fryÂing vegÂetable-based dishes in olive oil, parÂticÂuÂlarly refined olive oil, may not have the negÂaÂtive health effects assoÂciÂated with fried foods cooked in unhealthy seed oils. The research showed that refined olive oil had the highÂest resisÂtance and lowÂest deteÂriÂoÂraÂtion of qualÂity comÂpared to other oils like corn, soyÂbean, and sunÂflower, makÂing it a healthÂier option for repeated fryÂing.
It is genÂerÂally recÂomÂmended that fried food is avoided or conÂsumed sparÂingly. However, vegÂetable-based dishes fried in olive oil were comÂmon in traÂdiÂtional Mediterranean diets withÂout, it appears, the negÂaÂtive health effects we assoÂciate with fried foods.
The reaÂson for this may be that the foods were fried in olive oil, and not in unhealthy seed oils.
A British study had already shown that occaÂsional conÂsumpÂtion of fried foods was not assoÂciÂated with coroÂnary heart disÂease events, as long as the food was fried in fresh (not re-used) olive oil and the indiÂvidÂuÂals were folÂlowÂing a Mediterranean diet.
Now, a new study pubÂlished in the Journal of Agriculture and Food Chemistry, anaÂlyzed the repeated deep fryÂing and pan fryÂing in 4 difÂferÂent refined oils: olive, corn, soyÂbean, and sunÂflower. The researchers evalÂuÂated the staÂtus of the oils after being heated ten times, meaÂsurÂing sevÂeral chemÂiÂcal paraÂmeÂters.
See Also:Dispelling the Myths of Frying with Olive Oil
The refined olive oil had the highÂest resisÂtance and lowÂest deteÂriÂoÂraÂtion of qualÂity comÂpared to all of the othÂers. The highÂest deteÂriÂoÂraÂtion occurred in the refined sunÂflower oil.
The findÂings are even more sigÂnifÂiÂcant in the conÂtext of comÂmerÂcial fryÂing, such as in restauÂrants.
Refined olive oil is the comÂmon olive oil grade obtained through an indusÂtrial process of chemÂiÂcal refinÂing to remove undeÂsirÂable qualÂiÂties such as excesÂsive acidÂity and unpleasÂant flaÂvors. This olive oil does not conÂtain many of the widely touted health benÂeÂfits of extra virÂgin olive oil, which conÂtains a host of nutriÂents and antioxÂiÂdants. Nevertheless refined olive ois is a useÂful and healthÂier alterÂnaÂtive for repeated fryÂing comÂpared to other cookÂing oils such as corn or soyÂbean.