Don't eat carbs before going jogging. I read at a gym that it raises your blood sugar (obviously) and you then burn the sugar in your blood instead of burning the fat in your body (which seems to be your aim).
However a lack of carbs will lead to no energy, and then subsequent collapses like I have been experiencing in my running. The chances of d. highland actually burning all the carbs/energy and experiencing a depletion are very low if moderate jogging is the form of exercise he's choosing.