Well definitely drink some water, but not a lot of water, because then you could get a side ache while jogging. Be sure to eat some carbs, because that gives you energy. I play soccer and my coach always tells us to eat lots of carbs before games, so our energy will be high. Carbs would include anything with grain... so toast, bread, noodles, bagels, or pancakes. also, be sure to eat some fruit too, like strawberries or celery. be sure to not eat to much though, because nothing ruins a jog like vomiting all over.
have a nice jog!