I actually really like the taste of it so I suppose that helps.... certainly worth a try nothing ventured I suppose. I tend to drink a whole litre bottle the night before a long race at least although I also have to admit that I haven't been doing that recently as have been doing calf strengthening exercises alongside the training.....I'm guessing your cramp is in the calf (apologies not read back to the first post to refresh my mind) I've found as the muscles are getting stronger and bigger

the cramp issues have reduced dramatically....not sure if this is co-incidence or not as am no sports pys..phys....fizzition!!