Again though, they're one data point and some of the time they're one person away from statistical significance. So it seems likely some people did notice a difference.
I'm not necessarily saying the experiments are dangerous in and of themselves. It's the frequent use of them as more than a single data point that is dangerous. Things like the oxygen versus no oxygen experiment or the direct pitch versus rehydration. It can be measured that you get more...
I forgot to post this...according to shawn the water alkalinity from his well is about 140...so he probably adds a fair bit of acid in addition to a lot of calcium