Definitely need to eat a little something before. Nothing big, granola bar, piece of fruit, personally I drink a Slim-Fast. This will help get your metabolism going because you are giving your internal processes something to do and a little bit of fuel.
Also, if you are running @ 10:30am, let's say you ate dinner at 8pm the night before, that's 14.5 hours without any fuel for your body. Now contrary to popular belief that doesn't mean you are burning fat. Actually your body doesn't know when it will eat again, so it will go into a survival mode. First thing to go, unnecessary muscle mass. Fat is the last to go, because it serves as a long term
energy source, insulation, and protection for your organs. Don't really need to tell you that you don't want to burn off your muscle. Why do you think
marathon runners have the look they do, they only keep the muscle they need.