At least in the UK many of the leading "sports" drinks, will add some form of artificial sweetener regardless of if it is a high sugar or low sugar variant e.g.

https://www.sainsburys.co.uk/gol-ui/product/lucozade-sport-o... - Sugar + Aspartame + Acesulfame K

https://www.sainsburys.co.uk/gol-ui/product/powerade-berry-t... Sugar + Aspartame + Acesulfame K

https://www.sainsburys.co.uk/gol-ui/product/lucozade-sport-z... Acesulfame K + Sucralose