Which has less caffeine, Diet Pepsi or Diet Dr Pepper?
                                
                                
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                                    3 min read                                
                            
                                According to the Center for Science in the Public Interest, Diet Dr Pepper typically contains more caffeine than Diet Pepsi, with around 41mg versus Diet Pepsi's 35-38mg per 12-ounce can. This difference, though slight, is a key consideration for consumers monitoring their caffeine intake.