Actually, corn oil has some problems too, but soy and rape (AKA canola) are the worst. Butter is totally safe in the quantities that most people consume. (If you ate it by the fistfull, you might eventually clog your liver and gallbladder)
So, fistfuls of butter it is!
Even the little pats they hand out in restaurants.
That's why these oils are highly important ~ got a bunch of different ones, even some stuff in there that's probably poisonous (walnut oil, date palm oil, woodchuck oil, etc.).
I noticed that Aldi's has been under criticism for selling the adulterated stuff in its stores in Germany. Just a few years ago a German laboratory found that the standard brand sold by Aldi was the "least poisonous" available in Europe ~ they rated it #1, the olive oil to use if you gotta' use olive oil ~ (I gather there's still a bias towards pork lard in German kitchens).
Apparantly the incentive to commit olive oil fraud in Europe is tremendous if they can suck Aldi's into it.
Actually, Canola oil is not bad for you at all if it's in it's pure form. Once it's hydrogenated, heated, then it's bad for you. You're right about butter though. Our bodies actually know what to do with that stuff, but it has a much harder time breaking down hydrogenated- modified veggie oils.
What is wrong with canola oil?
I don’t like rapeseed aka canola (Canada oil); it has an off flavor, and it literally turns to varnish in my pans and is impossible to remove. In fact, it was formerly used in the paint industry! What the hell is wrong with people??
The scare over canola oil is an urban legend. Look it up on snopes.com or hoaxbusters.