Thank you THE PROF, you've helped clear things up.
As for why I'm interested in this, it's purely, simple curiosity, raised by watching a BBC health and nutrition programme that stated rapeseed oil was just as good as coconut oil. I don't care what anyone says, that's complete bull.
"Rapeseed oil is composed mainly of monounsaturated fats, has high omega-3, fails to produce aldehydes at high cooking temperature, has a high smoke point and has a low saturated fat content."
Just because on paper rapeseed oil is a healthy alternative, it doesn't necessarily mean so in reality. OSR has been around the thousands of years and only now do we eat the stuff. It raises questions in me, when the main use of the oil was in manufacturing and engineering. I strongly believe that the ONLY reason this is getting pushed as being healthy is because of Monsanto. They are the one's who have GM OSR, they have made it resistant to Glyphosate and probably also the horrific neonicotinoid pesticides. There is money to be made, the number of fields now growing this has grown substantially in the last few years. I assume OSR grown now is a hybrid, so farmers will have to buy new seeds, yet supplying more money to Monsanto - correct me if I'm wrong. As you can guess, I don't like or agree with GM or Monsanto! We may not be selling GM rapeseed oil on our shelves but I'm concerned our farmers are growing it and other GMOs. I truly believe these and other environmental practices are killing our honey bees - now that is a whole other thread!
As for how healthy it is, well there are a number of studies that dispute this and that it may cause more harm than good. Below is a good starting point.
http://articles.mercola.com/sites/articles/archive/2014/04/16/saturated-fat-heart-health.aspx
Because I don't eat the stuff (only use coconut or avocado oils or good old fashioned butter or dripping, I believe these are the good fats, even if saturated) I haven't been inclined to doubt this site and many others. My gut just tells me if has generally been a manufacturing oil and that Monsanto are going to make money from it, then we should not take everything we are told at face value.
I completely agree with you about palm oil and won't touch the stuff!