What garnish do all tonic drinks come with?

Tonic drinks are typically garnished with a lime wedge for several reasons. The citrusy flavor of the lime complements the bitterness of tonic water and enhances the overall taste of the drink. Lime not only adds a vibrant color to the presentation but also offers a refreshing aroma that pairs well with the effervescence of tonic water. This tradition dates back to the origins of tonic water, which was historically used to help mask the taste of quinine, a key ingredient known for its medicinal properties against malaria. Additionally, lime wedges are common in many cocktail recipes and are a familiar and expected garnish for drinks that include tonic. Thus, using a lime wedge creates a consistent experience for those ordering tonic-based beverages.