Can I drink Pepsi in fast? A definitive look at soda, sweeteners, and your fasting goals
                                
                                
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                                    4 min read                                
                            
                                According to the National Center for Biotechnology Information, nearly half of American adults consume low or zero-calorie sweeteners, making the question, "Can I drink Pepsi in fast?" a common one for those following a fasting diet. The answer depends entirely on the type of Pepsi and your specific health goals, with regular soda containing calories that will break a fast, and diet versions presenting a more complex metabolic challenge.