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Experimental Fat Loss's avatar

For one, I think what you call "chips" we'd probably call "steak fries." French fries indeed seem to be skinnier and fried crispy as a result thereof. I've never been much of a fries guys, I think I might've had <10 servings in my life. At least I can't remember ever eating any except 1 time in my childhood, and once last year when I did the potato trial. I'm sure there was a serving here or there that I just forgot.

I think there's a bunch of PUFA/BCAA interaction. There have been a ton of mouse studies in recent years (one came out literally last week!) that I've been reading/writing up on, will post this weekend.

The mouse studies don't explicitly say "PUFA bad" of course. But they feed a "high-fat, obesogenic diet" which inevitably consists of lard, corn oil, soybean oil, palm oil... compared to a low-fat diet that contains some soybean oil (for essential fatty acids) but is vastly lower in overall fat, and thus, PUFA. Rest usually starch.

In the high-fat (PUFA) context, BCAA restriction prevents obesity and diabetes. In the low-fat starch diet, it makes no (or little) difference. That's actually not quite true - even the "control chow" mice seem to get slightly fatter, and have slightly suboptimal glucose tolerance tests. Maybe because their diet is still moderately high in PUFAs? Sometimes, we see that the BCAA restricted mice do even better than the control mice.

What exactly is the interaction? No clue. Could it be that I'm full of it, and it's not PUFA, just "high-fat?" Ok, but then how did I lose the weight eating 88% kcals from fat?

I really want the researchers to put a bunch of mice on a macro-matched diet of tallow or butter instead of lard/soybean oil. I've been bugging them about it on Twitter lol.

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John Lawrence Aspden's avatar

I'm a little sceptical of mouse studies just because I think mice tend to eat a lot of cold fatty things like earthworms and seeds, so they probably deal well with PUFAs. Whereas we eat other mammals, which likely have lots of saturated fat because they are hot.

Still, avid to know what you find out, and I look forward to your post.

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John Lawrence Aspden's avatar

Maybe "steak fries" and "french fries" would be an unambiguous nomenclature?

But if I try to use those terms I'm going to confuse people when I inadvertently write "chips" and statesiders reads it as "crisps". And "steak fries" doesn't mean anything outside America, I'd never heard the term before, so Christ knows how people this side will interpret that.

Vexing.

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Experimental Fat Loss's avatar

Yea I'd think even here, steak fries would confuse many.

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