Reply To: Coke Zero sugar or Diet Coke? And what exactly is the difference?

I find that they taste differently.

Here’s the list of ingredients in Coke Zero Sugar:

Carbonated water, caramel color, phosphoric acid, aspartame, potassium benzoate, natural flavors, potassium citrate, acesulfame potassium, caffeine,

Diet Coke is missing two ingredients listed above: potassium citrate and acesulfame potassium. Acesulfame potassium is a calorie-free sugar substitute and potassium citrate is a common additive in beverages.