In case you didn't know I'm an exercise physiologist and a former competitive distance runner - now I'm just an occasional, or maybe just an accidental runner ;-)
Anyway, I gave a speach in Marathon Sport about what and when to eat before a marathon run. That's where I work part time beside teaching physioterapeuts and there's an article in the national newspaper Politiken about that. It's in danish, but anyway here you go ...
Article in Politiken | Marathon Sport