Conclusion from WHO (World Health Organization)

旸rinking water should contain minimum levels of certain essential minerals (and other components such as carbonates)

旸emineralised water that has not been remineralized, or low-mineral content water ?in the light of the absence or substantial lack of essential minerals in it ?is not considered ideal drinking water, and therefore, its regular consumption may not be providing adequate levels of some beneficial nutrients.

昐ufficient evidence is now available to confirm the health consequences from drinking water deficient in calcium or magnesium.