Fever-Tree uses fructose to make this lighter tonic water. The subtle botanical aromas with spring water and the highest quality quinine give it the unmistakably clean, crunchy character of Indian Tonic Water, but with 46% fewer calories. The refreshingly light Indian Tonic Water uses a handful of different botanicals, including the distinctive quinine and oils from Mexican bitter oranges, to give a uniquely clean and refreshing taste and fragrance.