What is Diet Coke made of?
Diet Coke is made from water, artificial sweetener (currently
aspartame), caffeine, phosphoric acid, potassium citrate (acid
regulator), citric acid, flavorings, and caramel color. Almost all
low-calorie or no-calorie sodas have generally the same ingredients
except for their flavorings.
*Diet Pepsi uses potassium benzoate as an acid regulator and
preservative.