[wittyreference]

Chlorine sucks. It's added to water because the other major way of disinfecting water (ozone) is too transient to last all the way through the water pipelines. Nonetheless, they're often used in combination, to minimize the amount of chlorine needed. The only thing worse than chlorinated water is the diseases you catch by not having chlorinated water.

[aficiomaquinas]

This is exactly my point. If anything, the effects of chlorine dioxide seem minimal or barely noticeable compared to chemo, and of course, much better than dying of cancer. I'm not saying that cancer patients should skip chemo, though!