Uludağ Zero Tonic Uludağ Zero Tonic offers a whole new level of taste and enjoyment with zero sugar, zero calories, and zero preservatives. Produced without the addition of preservatives or sugar, it delivers 100% satisfaction. Available in 250 ml glass and 1 L PET bottles, Uludağ Zero Tonic contains 85 mg/L of quinine and is marketed with the slogan "Zero sugar, zero calories, zero preservatives," providing pure taste and refreshment.