Which drink has quinine in it? A look at tonic water and other sources
                                
                                
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                                    3 min read                                
                            
                                Originally, quinine was used as a treatment for malaria among British colonists in India. The most common and widely recognized beverage that contains quinine is tonic water.  This compound, derived from the bark of the cinchona tree, is responsible for the drink's characteristic bitter flavor.