Dang it,lost my post!
OK,AFAIK,evoo and coconut are both very healthful and used in their place excellent choices.Canola is a chemical disaster and I wont touch it.
Margarine,another chemical stew.
I go for natural over any man made food that requires chemical processing.I wont go for "Better living through chemicals" when it comes to food,ie curing salts excepted,that sort of thing.
Lard is actually,chemically,better than butter.Lard got a bad rap during the cholesterol BS (non)science.No trans fat in Lard.So butter in place of margarine,Lard in place of canola chemicals is my take.Lard and fluffy biscuits/pastries are well known.
As for 'vegetable' oil,I dont know anything about it.
Another Mrs uses is grapeseed oil,moderate smoke point and good in salad dressings,light flavor.Healthy or not though is debatable,can read studies that go either way.
All current and even some very old literature seems to back up trans fats as being very harmful.
Just what Ive read,who knows the truth?
Certainly would like to know what others think about the subject.