Is canola oil good or bad for you? Is it the same as rapeseed oil? It's one of the cheapest oils you can buy, and is being used more and more in processed food. It is probably genetically engineered, and if you heat it to a high temperature, it can form products harmful to your health, e.g. aldehydes.
In its refined form that you buy in the supermarket, the nutrients would not be significant. Read this comprehensive article about canola oil.
Any oil that has to go through a lot of processing before the oil is extracted is likely to be less beneficial for you. Canola oil is a case in point: it has to go through so many long chemical processes, as the article above outlines. Ideally, any oil you buy would be less refined, fresh and organic, and you would not heat it very much if at all.
Oils for cooking
Oils we suggest for cooking are coconut oil, ghee, avocado oil or, to a low temperature, butter or olive oil.
Oils for eating raw
Oils we suggest for eating raw are flaxseed, hempseed, extra virgin olive, walnut. It is better to minimise your cooking with oils, and avoid using polyunsaturated oils such as 'vegetable oil'.