The Two Cokes

Do Coke Zero and Diet Coke have the same ingredients and same flavor? You might be surprised by the results of our research. 

• The ingredient lists are similar
• Both consist of carbonated water, caramel color, phosphoric acid, potassium benzoate, aspartame, natural flavors, and caffeine
• Coke Zero has two ingredients Diet Coke lacks: potassium citrate and acesulfame potassium
• Diet Coke has one ingredient not found in Coke Zero: citric acid
• Coca-Cola Zero Sugar looks and tastes more like Coke-Cola Classic