Erythritol is a low calorie sugar substitute that is being increasingly used to sweeten beverages and other food items. Greater amounts of erythritol are required to reach the sweetness level of a common soft drink as compared to aspartame, resulting in higher osmolarity for the erythritol sweetened beverage. Since associations have been noted between osmolarity and satiety, investigators propose that an erythritol sweetened beverage may enhance satiety more than a beverage sweetened with aspartame.