Which soda has more caffeine Coke or Mountain Dew?
Caffeine concentration in various soft drinks was ranked by Auburn University in a new study. Diet Pepsi contains 38.9 mg of caffeine; Pepsi One has 57 mg; Mountain Dew has almost 55 mg; Diet Coke has 46.3 mg; Dr. Pepper has 42.6 mg; Pepsi and Diet Pepsi each have 36.7 mg, and Coca-Cola has 33.9 mg.