Canola Oil Unhealthy. Canola oil isn’t the healthy oil you’ve been led to believe. Canola oil is a variety of rapeseed oil, which has been used since victorian times as a lubricant in maritime steam engines.

The problem is that too much of this fatty acid can contribute to inflammation and oxidative stress. Processed vegetable oils (not just canola) go through a high heating step called “deoderization.” the process drives off unappealing tastes and odors to essentially make the oil taste neutral, which is. Hexane is a main component of gasoline, and is obtained by refining crude oil.