ro filter

[Canadian]

You guys keep saying things like "...DI water will eventually remove enough trace elements to give you health problems." without providing any proof. It's absolutely insane. The water you consume does not simply pass through your excretory system without being filtered. Even if, for instance, DI water was aggressive enough to strip as much Ca as possible from your body after you consumed it, the reduced Ca concentration in your plasma would trigger the secretion of parathyroid hormone which would prompt the stimulation of the formation of calcitrol to increase intestinal absorption, and cause your kidneys to increase Ca reabsorption, thus leading to decreased Ca excretion. Likewise, similar response mechanisms occur for controlling the excretion of other ions such as K, Na, etc. It's called homeostasis - it's a wonderful thing people.
It's not as if your body is a cylindrical piece of pipe through which water flows. "Stripping" of ions early in the process of ingesting DI water would trigger the reabsorption of those ions in the kidneys and other organs before they were excreted. A piece of pipe or a semiconductor kinda of lack those physiological components and mechanisms don't they?