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daanavitch | 2 years ago

I have a multi-stage water filter setup at home that pumps the water through mineral balls as the last step to re-introduce healthy minerals that were removed during the reverse osmosis process. Because it's true, RO water is not suitable for long-term human consumption because of the absence of healthy minerals.

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Mistletoe|2 years ago

This is a common myth but it doesn’t make sense if you do the math. There aren’t enough minerals in tap to make a difference compared to the food you eat.

Per protocol, we gave our lab rats deionized water that was likely close to zero ppm. All the minerals they need are in the chow.

I have drunk delicious RO water at home for decades and have experienced no ill effects, all my blood work for minerals is perfectly normal, teeth healthy etc.

>Using an average calcium concentration in public water supplies of 26 mg/liter and a maximum of 145 mg/liter (Durfor and Becker, 1964) and assuming that the average adult drinks 2 liters of this water daily, then the drinking water could contribute an average of 52 mg/day and a maximum of 290 mg/day. On an average basis this would represent 5% to 10% of the usual daily intake or approximately 6.5% of the adult RDA.

>Therefore, typical drinking water in the United States, Canada, or Europe provides approximately 3% to 7% of the RDA for magnesium intake by a healthy human.

https://www.ncbi.nlm.nih.gov/books/NBK216589/

I suppose if someone was right on the borderline for mineral deficiency the ~5% of the RDA from water could make a difference but that isn’t really a problem Americans have, if anything they get too much from food. There is some data showing excess calcium is actually bad for heart disease since it is found in atherosclerotic plaques, a problem Americans do have.

jejeyyy77|2 years ago

Not sure if legit, but WHO apparently issued a warning regarding RO water as well.