Why are the salts in sports drinks classified as electrolytes?
For the simple reason that they are present in solution as discrete ions.....
And as discrete charged particles, even if they are solvated by several water molecules, they can carry a current, and hence the solution is electrolytic. Of course, you go to a supermarket and you can buy any number of such sports drinks.
Years ago I had a colleague who was a running fool, and he used to take