ClueBiotics launched its self-titled prebiotic water. Clue Prebiotic Water contains 4g of fructooligosaccharides (FOS), which supports digestive function, immune health, calcium absorption and is a good source of fiber, the company says. 

Packaged in 16-ounce bottles, Clue Prebiotic Water is available in select markets for a suggested retail price of $1.99 for a bottle.