Sodium is also known as salt. Both Diet Pepsi and Pepsi Max contain sodium benzoate. Potassium is an electrolyte that helps meet the mineral needs of active people, and it is especially added to All Sport products. Potassium in Pepsi-Cola products may come from water or as part of certain ingredients. For example, potassium may be combined with benzoic acid, which helps prevent spoilage and flavor changes.
Caffeine provides a characteristic flavor to soft drinks.
Caffeine is naturally found in coffee, tea and chocolate. In the Street Cents test, only Diet Pepsi contains acesulfame-potassium. This adds colour to the Pepsi products. Aspartame is a sugar substitute used in our diet beverages and many other food products. More on aspartame Aspartame is a sweetener.