Those articles don't seem to talk about canola/rapeseed oil, at all. They seem to cover olive oil, which I stated is thought to be a health oil. Am I missing something?

Or, was my parenthetical comment about high heat cooking with olive oil confusing? I was speaking of canola/rapeseed oil when I said the evidence that it is healthy have all but evaporated. Olive oil is great, but burned oil is carcinogenic. Olive oil burns at a quite low temperature. So, cooking in grapeseed oil is probably a better bet, and adding olive oil toward the end for flavor.