What beer causes the least hangover?
                                
                                
                                •
                                
                                
                        
                                    
                                    4 min read                                
                            
                                According to the Mayo Clinic, congeners, the byproducts of fermentation found in higher concentrations in darker beverages, can significantly worsen hangover symptoms. This means that the quest for what beer causes the least hangover often leads drinkers toward lighter, simpler brews over complex craft options, though moderation is key regardless of the beer choice. Understanding the science behind alcohol metabolism can help you make a smarter decision for your next social outing.