For a morning workout... I would think that is you took in good nutrition the night before and didn't wake up hungry, you could go without any food in your tummy... especially for a run under an hour.
I was talking to my tri coach last night... and he was suggesting that I stop eating hours (2 hours?) before I run... to try to fix my side cramp issue. He said that the food you eat right before you run, doesn't do any good... because it doesn't have time to digest.
If you are doing a slow run, your body will use reserves to pull from to power your body.
He said it's odd learning how to run on a hungry stomach, but it's perfectly fine. I will test this out and see how true it is! Although, when I run hungry, I lose energy.
Maybe you should try some sort of liquid nutrition... although... for a run under an hour... you should be fine with just water. ????
"Life is not a journey to the grave with the intention of arriving safely in a pretty and well preserved body, but rather, to skid in broadside thoroughly used-up, totally worn out, and loudly proclaiming: WOW WHAT A RIDE!!!!"