I find it totally crazy that I haven't eaten a speck of food since dinner around 9pm last night, and here it is, after 6pm, and I'm not even uncomfortable.
I get little waves of hunger, spurred maybe by a picture of food or a whiff of a co-worker's disgusting microwave dinner... but they subside.
It feels a lot like a meditation to me. You become aware of the hunger, acknowledge it, and move past it mentally.
Anyway, just surrounded by computers and desk trolls right now and thought it better to share that thought here than with the office!