The principal reason for a remineralizer cartridge is TASTE and if you want to accuse me of not knowing about them then you are WRONG. It is part of what I do TASTE and in particular related to Tea and Coffee water. If the water is to pure the result tastes flat. Somewhere around 50-80PPM is best for Espresso while brewed drinks generally 100-150 PPM is about right. There is Nothing psuedo scientific about this at all and involves blind tastings again as part of what I have done for Roasting and Cupping training.
Oh, look a strawman. I took no issue with what you had to say about taste, in fact I quite agree. But you set that up as a strawman argument and proceed to 'demolish' that.
Stick to the substance of my argument, not the one you've made up to replace it. How does purified water cause "gut troubles due to the pH." as you claim? In what way is that claim anything but an old wive's tale?
Ditto the deleterious nature of purified water to humans, unless you have a diet so deficient in calcium and magnesium that you body is reduced to scavenging every last bit one can of each from drinking water? The recommended daily intake of calcium in the UK is 700mg, moderately 'hard' water is 100 - 200 mg CaCO3 per litre which is equivalent to 40-80mg of calcium, thus one would need to drink 8.75 to 17.5 litres of water a day to make up the RDI by which point you would probably have passed the LD50 of water which is 90g/kg (rat), so 6.3 litres for a 70kg man.
As far as osmosis inside the body is concerned - give me a break - one of the miracles of the kidney is its ability to selectively retain or discharge minerals according to need, it's not some chunk of Visking tubing that will always shunt minerals one way and water the other according to concentration. That's precisely why the kidney contains active transport mechanisms in addition to simple osmotic mechanisms. Reabsorption of Ca2+ ions by active transport in particular is controlled by parathyroid hormone, and the levels of parathyroid hormone are controlled by blood calcium levels. Just drinking mineral deficient water is not enough to make you start literally pissing minerals away in fact, by the miracle of homeostasis, it will have exactly the opposite effect.
Hardly a Strawman you were seemingly looking at remineralizier cartridges to heap shit on them as a product.
Again, you claim an argument that I did not make. I picked initially solely on the pH rubbish, which you are still to provide any supporting evidence for, and then later on the "terminal" to humans nature of pure water as if it's some toxin. I certainly wouldn't want to drink demineralised water (and I have) because it tastes completely flat but if it was all I had to drink I'd guzzle it down quite happily without fear of being demineralised like some victim in a 1950s Sci-Fi B movie, neither would I fear it burning my flesh or gut, because it would do neither.
Did you actually take a few minutes to READ some of the health downsides and risks to drinking low mineral water in the WHO link?
No, because the page is offline:
and furthermore, even if low mineral content in water is less than ideal (and I'm quite prepared to be persuaded that's the case, heck for the purposes of argument I'll even
stipulate it) it is not the same thing as implying that pure water is actively dangerous, which was your thesis. You seem to be trying to now argue that a diet that, when it includes water,
only includes pure water is bad - probably so. But that's not what you
were saying and what I picked up on:
The non Pumped R/O membranes are generally less of an issue as they tend to leave more Ions in the water. Be it R/O of most high grades, Demin or Distilled the damage it can do can be terminal to what it touches including the Human Body.
Your last part regarding Calcium from water intake is just completely pseudo scientific bunk in a poor attempt to make a point. Calcium sources in a non milk diet exist other than just water, most of Asia does just fine on this Diet style. Excluding Calcium from water is just a bad idea as it reduces that intake before we get to other beneficial minerals in water like zinc. Making up numbers based on just 'water' as that source of Calcium is complete and has zero to do with science.
It's deliberate hyperbole as is obvious from the introductory sentence of the paragraph it's in. At least I tried to present some reason, some numbers to demonstrate how little of dietary calcium comes from water. Trying to cast the whole thing as "
completely pseudo scientific bunk" is weak at best, deliberately evasive at worst. Is the stuff about how kidneys and homeostasis of Ca
2+ ions works "
completely pseudo scientific bunk" too? At no point have I suggested that one ought to exclude calcium from water - implying that is part of my argument is just more strawman building. You're the one who introduced water as an [implied] important source of dietary minerals to prop up your argument that pure water is "terminal" and if you drink pure water "
Osmosis in the body is a thing and stripping minerals does happen when you feed pure water in.". I've demonstrated that drinking water can only be a secondary minor source of Calcium and then you try to turn it around as if I'm suggesting that it ought to be the important source of Calcium - pull the other one mate, it jingles.
I've also demonstrated loosely that the body has a homeostatic control system that is quite adequate to balance the intake of Calcium (from whatever source) with the excretion of Calcium, a little demineralised water at one end of the scale is not going faze a system that can deal with someone who lives on milk at the other end of the scale. It has to be good because low blood Calcium can be fatal (ventricular tachycardia) and high blood Calcium also has a host of diseases associated with it. In further fact, about 20% of calcium intake goes straight out of your poop-shoot, untouched by the bits of the body that are capable of Calcium homeostasis. Drinking demineralised water could actual redissolve a small portion of that Calcium that was otherwise not bioavailable and make it available for intake, so the argument for pure water as a 'mineral stripper' gets even weaker - in some circumstances it might even hypothetically improve Calcium uptake from the rest of your diet. I stress -
hypothetically.
My point is that pure, even ultrapure water is harmless, whereas you started by
directly stating, unqualified, that pure water is "terminal" to machinery and humans alike. Sure, I wouldn't recommend that ultrapure water was the only water you drank, but that was never the contention.
You've also baldly stated that pure water is "
likely to give gut troubles due to the pH" which is what I called you out on first because it's wrong, obviously so if one knows some common pH values and thinks for five seconds, and, coming uncorrected from someone who is clearly knowledgable in some areas, is likely to lead some people to believe that guff. If you want "
completely pseudo scientific bunk" you have it there, the mention of pH makes it sound scientific to the uninitiated but it is
just plain wrong as the most cursory examination of the facts proves. You have
still failed to provide any evidence that the assertion is true, just lots of handwaving and accusations of pseudo-science and diversions into arguments that I haven't made. The statement that pure water is "
likely to give gut troubles due to the pH" is wrong, and your refusal to concede that point, or provide cogent arguments to support it, and instead concentrating on speculation about improbable calcium deficiency, tends to suggest that you too know that it's unsupportable.