Diet Coke 2L, Sparkling Low Calorie Soft Drink with Plant Extracts with Sweeteners. Add some sparkle to your day without the sugar or calories, with a crisp, refreshing Diet Coke! No Calories Sugar, Ingredients Carbonated Water, Colour (Caramel E150d), Sweeteners (Aspartame, Acesulfame K), Natural Flavourings, Caffeine Flavouring, Acids (Phosphoric Acid, Citric Acid)