Is it safe to drink an energy drink daily?
                                
                                
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                                    4 min read                                
                            
                                According to a 2025 study from the Mayo Clinic, heavy caffeine use—more than 400 milligrams daily—can lead to severe health issues like high blood pressure, palpitations, and sleep disturbances. This raises the critical question for many: Is it safe to drink an energy drink daily?