The reason you're getting downvoted a lot is that HN is pretty hostile to snake oil and pseudoscience, and alkaline water is a poster child for both.

I'm happy to be corrected if I'm wrong, but I think that a registered medical device does not mean that it works - just that it's not harmful. There have not been any studies showing alkaline water is beneficial for anything other than possibly slowing bone loss.

I've read a lot of the marketing literature around water alkalizers, and whether or not they actually do something beneficial, I can promise you that the marketing materials are full of intentionally deceptive claims (like "registered medical device"), and discredited theories, and just plain gibberish that depends on wowing the reader with a lot of science-sounding words.

If it's not snake oil, then it's a real shame it's sold using snake oil sales techniques.

shrugs don't much care. I don't know if it does or does not work. I was just sharing I worked directly with a guy who's wife got breast cancer and that was the only thing she did to treat it as she refused chemo or radiation therapy. She is still in full remission and their whole family swears by the alkaline water.

I don't much care either way, take my anecdote as you will. A few downvotes aren't really going to hurt a 1500+ karma :)

There's nothing wrong with anecdotes on HN. Threads here are conversations, and anecdotes are what conversation is made of.

Thanks for keeping HN awesome.