Mostly I’m intrigued because I’ve basically never heard anyone talk about body fatty acid composition before at all. For all I knew, the human body converted all its fats into a standardized human fat before storing them.
And this kinda seems like a big deal, just intuitively? It definitely makes me update in favor of vegetable fat consumption having some kind of cumulative effect.
Good stuff, I’m still digesting it all! This adds to my idea that different types of oils/fats and different types of w3 and w6′s act quite differently in studies. I see very little bad about olive oil, and virtually nothing about soybean oil in particular even though it’s used most intensively in the US. People tend to talk of them in monolithic ways, but when you get down to it something like olive oil almost always stacks up well. As for the intuition, same here, not sure what to really make of this stuff other than it I don’t see a downside to excluding seed oils from my diet—our ancestors were certainly fine without them, and they’re found mainly in processed foods. The other low downside takeaway I have is that this should be studied more. When zoomed out, it definitely looks like a preponderance of the evidence is against seed oils, but when you get lost in the really specific studies you always come away thinking that whatever pathway they chose wasn’t quite proven.
One thing that jumped out at me from the [Stephan Guyenet post](http://wholehealthsource.blogspot.com/2011/08/seed-oils-and-body-fatness-problematic.html) Scott cites: the increasing linoleic acid content of human fat.
Mostly I’m intrigued because I’ve basically never heard anyone talk about body fatty acid composition before at all. For all I knew, the human body converted all its fats into a standardized human fat before storing them.
And this kinda seems like a big deal, just intuitively? It definitely makes me update in favor of vegetable fat consumption having some kind of cumulative effect.
Good stuff, I’m still digesting it all! This adds to my idea that different types of oils/fats and different types of w3 and w6′s act quite differently in studies. I see very little bad about olive oil, and virtually nothing about soybean oil in particular even though it’s used most intensively in the US. People tend to talk of them in monolithic ways, but when you get down to it something like olive oil almost always stacks up well. As for the intuition, same here, not sure what to really make of this stuff other than it I don’t see a downside to excluding seed oils from my diet—our ancestors were certainly fine without them, and they’re found mainly in processed foods. The other low downside takeaway I have is that this should be studied more. When zoomed out, it definitely looks like a preponderance of the evidence is against seed oils, but when you get lost in the really specific studies you always come away thinking that whatever pathway they chose wasn’t quite proven.