Does Tonic Water Have Quinine in It? Unpacking the Bitter Truth
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4 min read
Originally developed in the 1800s to help British soldiers prevent malaria, tonic water contains quinine, a compound sourced from the bark of the cinchona tree. While the original formulation used a medicinal dose, the amount of quinine in modern tonic water is significantly lower and serves primarily as a flavoring agent. This bitter-tasting ingredient is what gives the beverage its distinctive flavor, making it a polarizing drink on its own but a beloved mixer for cocktails like the classic gin and tonic.