Seriously, I know many people think it is only for old people for a regular elimination system, but it has the correct GI and carbs for an intense workout for many. Even on the Star Trek movies, Warf calls prune juice "A warriors drink" HAHA
I've never found anything that produces so much as energy as my great aunts prune juice. Perhaps that's why I'm given it before various helpfull tasks. I'm sure old people know more then they seem. HAHA