What soft drink has lithium in it? The surprising history of 7 Up
                                
                                
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                                    3 min read                                
                            
                                Did you know that until 1948, the popular lemon-lime beverage, 7 Up, contained lithium citrate? The soft drink has a surprising medicinal past, having originally been marketed as a mood-stabilizing tonic and hangover cure, a practice that was common during the early days of soda production.