Fever-Tree Refreshingly Light Tonic Water is made with the finest quinine from the Democratic Republic of the Congo and a touch of Mexican bitter orange for a refreshing, subtle citrus taste & aroma. By substituting natural cane sugar for fruit sugar, it retains the refreshing taste & aroma with only 30 calories per 6.8fl. oz. bottle. Naturally sourced ingredients. No artificial sweeteners or colors. 4 pack of 200 mL glass bottles.