My writing brain is a starveling. Also quite dramatic, apparently. I mean, really, brain: "pining with want"? Except yes, that's really the best description. I can't write if I am properly fed. Full belly equals sleepies and a complete lack of motivation. Plus also, my stories are about longing, right?
At any rate, when I'm fast-drafting or working up against a deadline, I exist on coffee and vodka and the occasional no-carb whatever, which often tastes like canned tuna or roasted almonds. It's probably a good thing for my long-term health that I don't get into these intense write-all-the-words-RIGHT-NOW situations. Though, I'll be honest, they are fun.
Know what's funner, though? Getting the thing done. Which usually involves a celebration. Which means food.
You know that saying "I'll sleep when I'm dead"? My Writing Brain's version is "You can eat when you're done."