I am so frustrated by the constant marketing-hype about the health benefits of rapeseed / Canola oil. It is not chemically possible to extract the oil from the seeds of a toxic plant like oil seed rape without doing so much damage in the process that the oil is rendered highly toxic and inflammatory. Rapeseed (Canola) oil is not high in healthy omega 3 as is widely promoted. Rather, this highly beneficial but volatile essential fatty acid is converted to damaging trans fats during processing. Sally Fallon from the Weston A Price Foundation, sums it up:
“Like all modern vegetable oils, canola oil goes through the process of refining, bleaching and de-gumming — all of which involve high temperatures or chemicals of questionable safety. And because canola oil is high in omega-3 fatty acids, which easily become rancid and foul-smelling when subjected to oxygen and high temperatures, it must be deodorized. The standard deodorization process removes a large portion of the omega-3 fatty acids by turning them into trans fatty acids. Although the Canadian government lists the trans content of canola at a minimal 0.2 percent, research at the University of Florida at Gainesville, found trans levels as high as 4.6 percent in commercial liquid oil. The consumer has no clue about the presence of trans fatty acids in canola oil because they are not listed on the label.”
For safe, healthy choices of fats to eat and cook with, that help you lose weight, and those to avoid that trigger inflammation and weight gain, read my chapter on Fats in my new book: “Why Eating Less & Exercising More Makes You Fat”. Out on November 10th.