ACESULFAME-K sugar (Acesulfame Potassium) has been permitted as a low-calorie sweetener since 1988. It is an organic synthetic salt that tastes like sucrose, is 200 times sweeter than sucrose, and has a synergistic sweetening effect when used with other sweeteners. It is easy to preserve and heat stable, and can be excreted through the human digestive system unchanged, so there are no calories.