why would distilled water be that much worse? Not what I meant: I'd wonder the same thing about tap water. The question is isotonic vs. low-salt; distilled jus

why would distilled water be that much worse? Not what I meant: I'd wonder the same thing about tap water. The question is isotonic vs. low-salt; distilled just takes it to its extreme. (When I found out about hyponatremia the hard way, it was with tap water.)