Canola oil in particular seems most interesting. Its nutrient composition is more impressive than olive oil.
As for your theory, seed oils only make up 7% of US diet calories. Saturated fat makes up more than twice that. Replacing saturated fat with canola seems like an uncontroversial outcome improvement.
Wow, I was unaware of the 7% figure. And thanks for this article too, it’ll make for good reading later.
I’m certainly in favour of exchanging saturated fat for canola. I believe it was Finland where they made a big push to use canola rather than butter and the health outcomes seemed significant. There were confounding factors, but nonetheless, it was clear that a reduction in saturated fats yielded better life expectancy and lower rates of heart disease. The results were actually in line with what prior research indicated. Finland went from a lowest life expectancy in the world to one of the highest over decades, likely in part because of that transition away from dairy fats.
In that sense I think canola is amazing. I personally avoid both (of course it’s impossible to do so 100% of the time), but I fully support people choosing relatively healthier options.
Anecdotally, while living in Finland for a number of years I found that most households I knew would mix margarine and butter together 50/50, and that was the only form they used outside of cooking and baking.
Canola oil in particular seems most interesting. Its nutrient composition is more impressive than olive oil.
As for your theory, seed oils only make up 7% of US diet calories. Saturated fat makes up more than twice that. Replacing saturated fat with canola seems like an uncontroversial outcome improvement.