Normal for me. Whenever I do a new distance I'm always starving.
I'd recommend lots of water because you might be dehydrated. Also have some protein e.g. nuts rather than sweet or carbs. If you keep running this distance you'll soon get used to it. Then you'll do a half marathon!
That's what I'm struggling with. I was on slimming world before (am at target after losing 5 stone), but I've given up until after I complete the marathon. If I'm putting in all this effort, I want to be able to eat what I want!