[462436347]

> Many vegetable oils (and particularly seed oils) are high in linoleic acid. And guess what’s making up a rapidly increasing fraction of body fat? (figure from Stephan Guyunet):

No, this can't be true, since HN has repeatedly told me that the body preferentially stores sugar as fat (presumably via de novo lipogenesis, which studies like [1] show to be only a minor contributor to fat balance, but that's probably just more Big Sugar propaganda, right?), that dietary fat doesn't become body fat, and even that you can eat all the fat you want without getting fat because ketones are magic.

1) https://ajcn.nutrition.org/article/S0002-9165(23)06404-3/ful...

[audunw]

I don’t know which HNers you’re thinking about. But the only supposed mechanism I’ve heard of why sugar makes you fat is that it affects insulin, and insulin is the mechanism that signals fat cells to store fat. I haven’t heard/read anything from the keto community that argues that sugar being converted to fat is the primary mechanism of weight gain.

I may have read theories that it contributes more to visceral fat, which is really bad for your health? But that won’t be the majority of weight gained I think.

Feels to me like you’re arguing against a pretty big straw man.

[rcxdude]

Especially because, at least the way I've seen it, the argument is that fat is better calorie for calorie.

[462436347]

> I may have read theories that it contributes more to visceral fat, which is really bad for your health? But that won’t be the majority of weight gained I think.

Yeah, about that: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7171936/