How Many V8 Energy Drinks Can I Drink a Day?
                                
                                
                                •
                                
                                
                        
                                    
                                    4 min read                                
                            
                                According to the Mayo Clinic, most healthy adults can consume up to 400 milligrams of caffeine daily without negative effects. This guideline is key to understanding how many V8 Energy drinks can I drink a day, as each can contains a significant amount of caffeine derived from green and black tea.