Highly mineralized ground water would defenitely have been part of our past(this in turnwould have watered all of the plant foods which we consume). A highly dense mineral source would have been all of the glacial outflow which has ground bed rock into a coloidial suspension. Good stuff. To unsubscribe from the list send an email to [log in to unmask] with the words SIGNOFF EVOLUTIONARY-FITNESS in the _body_ of the email. To get a copy of the old archives or the FAQ, look in the EvFit folder at http://briefcase.yahoo.com/dryeraser