Oh, that's easy to fix! Sleep deprivation only gives you the munchies at first. Just sleep so little that you actually feel sick, and food no longer seems appealing! For added effect, drink so much coffee to stay awake that your stomach hurts. Not that I am currently doing this or anything. (Never again.)
Is this a common thing? I've been awake for 110 hours before, and was a mess at the end of it, but definitely felt more hungry than usual for the entire period.