[snozolli]

Like I said, hunger pangs were far worse when I was fatter.

That said, there's a spectrum of hunger. Have you ever been hungry enough that you thought about eating your own dog? I haven't, but I've read enough stories of humans surviving terrible conditions to know that it happens.

As for concentration while hungry, that honestly sounds like either a psychological addiction or something physiological like blood sugar levels.

it doesn't really generalize into advice about how anyone can simply change their perspective to avoid gaining weight

I didn't say anything remotely like that.