Many flavored seltzers in this set are labeled zero calories per serving. Some botanical or lightly sparkling options list low calorie counts — the provided product descriptions show examples of 25 and 27 calories per can.
The canned options are listed as metal/aluminum containers.
Several flavored waters are described as unsweetened or zero-calorie. Some botanical options explicitly state no added sugars and no sweeteners.
Some lightly sparkling botanical drinks include functional botanicals and adaptogens such as Lion's Mane, Ashwagandha, and L-theanine, plus minerals like magnesium and various botanical extracts.
Most are described as naturally flavored or “naturally flavored with other natural flavors,” meaning the fruit, sherbet, or botanical notes come from natural flavoring ingredients in the product text.