Jolt Caffeine-Energy Gum is a good-tasting and effective caffenated gum. It's cleaner and more portable than a caffeinated beverage, and there is strong evidence that it's even more effective than a coffee or an energy drink. These mint tablets from GumRunners LLC are packed with ginseng, guarana and caffeine to help the body burn fat and spare glycogen, giving users the strength to go longer before exhaustion sets in.