Yeah, I agree with all of that, but I would differentiate slightly between not being hungry and being full. I snack when I'm not necessarily hungry, but I don't snack right after I've eaten a full meal and am actively full.
Anyway, semantics of hunger/fullness aside, the effect of the drug is behavioral - people taking it do end up eating significantly less, which leads to substantial weight loss.
Also it is much easier to pass those snacks and other stuff when you are full or not hungry. If this is consistent state, it can also effect how accessible at other times snacks and such are.
Anyway, semantics of hunger/fullness aside, the effect of the drug is behavioral - people taking it do end up eating significantly less, which leads to substantial weight loss.