Separate names with a comma.
Probably because all there is to say about FO3 has already been said.
I'm trying as hard as I can to remember a ghoul that didn't require food, water and air in Fallout 3, but I can't remember any (actually, I explicitly remember seeing a ghoul water beggar, which is quite contrary to Kid in the fridge), do you mind reminding me where he/she is?
I'm thinking specifically of Keller Senior in the National Guard Depot, who survived for 200 years in a basically empty bunker as a Glowing One. There's also a bunch of ghouls in some of the metro tunnels which are functionally trapped without any resources yet seem to be doing perfectly fine, such as those in the irradiated metro.
I think it's more of because, that topic with the fridge? It has been made fun of, out-loud and clearly, in New Vegas by way of Wild Wasteland trait. In a stroke of genius (or stupidity) Bethesda decided to make it something 'possible' and, in turn, something canon in Fallout Universe.