Funny you should mention this now. My husband had been having leg cramps for the last week. We up his magnesium and potassium. Then I read about drinking tonic water because of the quinine. Quinine in large doses is approved over the counter but tonic water contains just enough of it to seem to help.
It ended up that my husbands sneakers cause his knee to turn and thus start the cramping. One of the air pockets in the heel had blown and he was walking weird and overcompensating because of it. We bought him a new pair of shoes and all seems ok so far.
I always have extra potassium on hand for leg cramps and now that I've read about tonic water, I'm going to keep a couple of bottles here, too. I get leg cramps right above my ankles that hurt so bad. I hope that this will help.
Thanks for posting this!!