. . . "He added that ingredients such as aspartame only keep people hooked on sweets over more wholesome choices.In a nod to the various concerns over artificial sweeteners, Coca-Cola and rival PepsiCo Inc. are also working to come up with a drink that uses natural, low-calorie sweeteners.This summer, Coca-Cola rolled out a version of its namesake soda sweetened with stevia in Argentina, a smaller market" .