Best type of water to drink?
I have done some reading and it seems to come down to these 2 choices :
Spring or Mineral water ( from earth )
Reverse Osmosis with added ozone ( any water processed )
As I understand with Reverse Osmosis they remove almost all the contaminants including the minerals in the water but the water does not contain any bacteria, viruses etc.
With mineral water all the minerals are still intact but might contain impurities because it did not undergo a strict filtration process.
What are potential positive or negative health effects of the reverse osmosis water with added ozone when compared with spring/mineral water?
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MICROBES
Bottled spring waters can contain microbes, which can, rarely, cause infections, for example, in the US, one outbreak in 1999/2000 has been reported (wcponline.com); some other small outbreaks are mentioned on CDC.gov.
According to one 2010 study in Canada, bottled waters may contain more microbes than tap water (Telegraph.co.uk).
Bottled carbonated mineral waters have, in general, less bacteria than non-carbonated waters (PubMed).
Bottled reverse osmosis waters should contain very few microbes; they are also additionally treated by ozonation or UV lights (CDC.gov, Wikipedia).
MINERALS
Mineral waters usually contain more calcium and magnesium than tap water, but it is not clear if this has any health benefits (PubMed, 2013). We get most minerals from food, not water, anyway.
Reverse osmosis waters contain very little of both nutritional minerals and chemical contaminants (CDC.gov).
In summary, it is not possible to say which type of water is better for everyone. Mineral/spring water can have better taste, and reverse osmosis water can be appropriate for individuals with weak immunity, since it contains very little microbes.
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