http://www.nytimes.com/2002/11/17/magazine/17WTWT.html
Old-style cargo pilots: “There are four basic food groups: nicotine, caffeine, chocolate and sugar. I carry a thermos of coffee when I get on the plane. I refill it at our hub and buy two packets of Oreos—first pack’s gone in an hour; the second takes me two hours. Oreos work the best—they’re chocolate and sugar. Mix them with coffee, that’s three out of four. What more do you want?”