By blending the essential oils from herbs gathered from around the Mediterranean shores with highest-quality quinine from the 'fever trees' of the Democratic Republic of the Congo, Fever-Tree have created a delicate, floral tonic water. Using fruit sugars to develop the lighter tonic water and blending subtle botanical flavours with spring water and highest-quality quinine gives it the distinctively clean, crisp character, but with 46% fewer calories. Delicious and low in calories.