Someone gave me the link http://www.pi-water.com and I was initially skeptical since it makes a lot of claims about “life force” and “bio-energy.” But a little bit of searching turned up an article about how it can increase NK activity in vivo.
Hmmm … the first link in the OP says that “pi water” is made:
“By having water go through Pi Ceramic, which posesses information of Fe2,3, and copy the information in it.”
Bad grammar aside (the webpage was obviously written in Japanese and then crudely translated into English), this sounds awfully similar to the idea of “molecular memory” so prevalent in homeopathy.
As to the second link in the OP, I notice that (A) the trial was only conducted on 5 subjects, and (B) there was no placebo group to compare their results with.
I looked at the web releases for pi-water. I have never seen such a load of rubbish in my life. They sprinkle their text with scientific terms (infrared frequencies, pi-mesons etc) without having a clue what they are talking about.
Just for the record, there really is a substance called “dilithium oxide” (Li[sub]2[/sub]O). And I believe it exists in crystalline form at room temperature.