Great Value Diet Tonic Water is a tasty refreshment with no artificial flavors or colors. This zero-calorie drink has a distinctive bitter flavor because quinine is dissolved in it. Tonic water was traditionally used as a way to prevent malaria, but now it is commonly enjoyed in your favorite cocktails, like the vodka tonic and gin and tonic. Add this carbonated tonic water to lemon water to create a refreshingly bitter lemon drink. Enjoy it on its own or use it as an ingredient in cocktails....