Beverages, carbonated, tonic water

Tonic water is the carbonated, quinine-bittered mixer best known as the second half of a gin and tonic, though it also pairs with vodka or is sipped on its own over ice with a wedge of lime or a sprig of mint. Its bitterness balances the botanicals in gin, and bartenders often build the drink in a tall glass with ice added last so the bubbles stay lively and the carbonation does not go flat before the drink is finished. Some tonic waters lean sweeter while others emphasize the quinine bitterness, which changes how much it dominates a mixed drink and is part of why bartenders choose one brand over another for a specific cocktail.

At 34 calories per 100 g, tonic water is a genuinely low calorie mixer, and a typical fluid ounce (31 g) carries only about 11 calories and 4 mg of sodium, both of which line up with the Low calorie and Low sodium tags on this food. Once a bottle or can is opened, the carbonation fades within a day or two even refrigerated, so it is best poured fresh rather than stored for later use. Because it contributes only mild sweetness at 8.8 g of sugar per 100 g and no protein or fat, it functions purely as a mixer or a plain fizzy sipper rather than a meal component.