Hi  Dick,  


I know you did not  ask, but here is my experience anyway.  I have ongoing 
electrolyte  issues and have found that potassium works better for my leg  
cramps


I know this will sound like I'm way off my rocker. I  know I did when a 
friend ,{ several years ago } told me to " just try  it.."  I would get killer 
cramps after a 5-6 mile hike...I put a bar of  soap--{ I think Caress ) 
{also use Irish Spring } , some say ivory is  best } under my bed sheet...Don't 
laugh---I have not had a cramp at night  ever since...I e-mailed my friends 
with the crazy idea & found that 3 of  them do the same thing---one girl 
even carries a bar of soap in her purse &  has one in her desk drawer to rub on 
her leg if she gets a cramp during the  day... I typed " leg cramps & soap 
" & did a  search.  It's all there & it works for  me...Lois