https://svalbardi.com/blogs/water/distilled-safety
A casual application of math to the concentrations of minerals in tap water would show you that simply eating vegetables would provide much more in the way of minerals (namely calcium and magnesium). If you drink 2L of 60mg/L Ca and 25mg/L Mg, that's only 12% daily value.
"Unsafe to drink DI water" is a myth. If your diet is that marginal that +/-12% matters, take a supplement.
If you eat a normal diet, the minerals lost in distilled water are a faction of what you consume with your food.
Bombastic.
> It looks like they're creating distilled water.
"distilled water" can mean many similar things. It is not a binary property of water:
Consider a water still that has 3 ports: one intake port of seawater, an output port of brine and an output port of water with a lower salt concentration than seawater.
Distilled can in this case refer to the water exiting the third port, even though it still contains some salts.
Distillation and purification in general is a process with diminishing returns: to get ever lower ppm's of mineral content requires ever more patience or energy.
In the context of seawater desalination, "distilled water" typically means water with sufficient salt removed to be now potable. Either way even if the third port was effectively Sigma-Aldrich 100% pure H20, the simple fix would be to dilute a tiny amount of the brine into the distilled water to restore the mineral content to potable levels.
You did not reference the study or page of the supposed WHO conclusion.
When I was studying at university I recalled the concensus basically being that the adverse health effects are a myth, since 95% of our salt intake comes from food.
Remember sailors have been drinking distilled water for over a hundred years.
Steamboats needed the ability to desalinate water anyway.
It is quite conceivable, that this myth starts as a counter-myth for a prior myth.
Scientifically different types of desalinated, deionized and distilled waters are closer to pure H2O than normal waters.
Linguistically pure is the antonym of impure.
The mere existence of distilled or pure water in the scientific literature conceivably caused purity zealots to opt for drinking distilled waters, falsely claiming health benefits.
Just like taking 10x vitamin C doses will not make you 10x healthier, neither would drinking distilled water. But it "sounds" purer.
In order to counteract obsessions about drinking distilled water, and to counter the false and disinformative claims of health benefits, some started opting to use the same tactics and weapons to stop the "pure water zealots", and the countery-myth is born.
That was my interpretation at university. So it surprises me to learn that WHO would recommend against drinking distilled water.
Of course only drinking distilled water would not be healthy indeed: you also need to eat, breathe, etc.
So I first did the easy check: wikipedia.
On wikipedia the same vague statement of the WHO concluding something along the lines of it being unhealthy is reiterated, but with a [citation needed] appended. Recall anyone can edit wikipedia. Such citation was never provided.
So next I tried to find the source myself, and downloaded the 312 page Drinking Water and Health: Volume 4 1982.
What page am I supposed to be looking at?
As I said at the start, its a non problem, because adding back in some mineral salts to the desired ppm is easy to do.