> I'd certainly be interested if someone could show that humans evolved on a
> particular kind of water that might not be around any more but could be
> easily and cheaply recreated. I'd try just as hard to get it as I do to
> approximate a prototypical diet. As for "improving" on our planet's
natural
> offerings, well, science has a really lousy track record there, doncha
> think?

The closest I found to paleo water is here
http://www.trinitysprings.com/

I don't sell it nor do I drink it very often.