calories tonic water
Other bottlers use different blends of minerals in their club sodas. Tonic water typically has 83 calories per 8-oz. cup with 21.5 gm of sugar (7 percent of recommended daily allowance), 29 mg of sodium (1 percent of RDA) and 2.4 mg of calcium. A typical club soda, by contrast, has zero calories, 50 mg of sodium (2 percent of RDA), 11.8 mg of calcium and 4.7 mg of potassium.