Instead of apples, dark chocolate and liters of caffeine drinks (how do you get these through security anyways?) you better do something practical about fatigue:
Wake up EU! | Dead Tired
p.s. what do caffeine drinks, chocolate and a lack of sleep do your overall health in the long run?
p.p.s. what is this topic doing in "freight dogs" anyways? Fatigue is everywhere in aviation, not just for the freight dogs.