Your body thrives on glucose, which is the sugar it uses to synthesize energy. Carbohydrates supply glucose and other sugars that are converted into glucose. But it's such a vital source of energy that the body has a back-up system called gluconeogenesis. This metabolic pathway produces new glucose from noncarbohydrate sources. - See more at: http://www.livestrong.com/article/276385-how-is-glucose-produced/#sthash.o5E20CrV.dpuf