[Drinking water hardness and chronic degenerative diseases. III. Tumors, urolithiasis, fetal malformations, deterioration of the cognitive function in the aged and atopic eczema].
For several decades a causal relation has been hypothesised between drinking water hardness and cardiovascular and other chronic degenerative diseases in humans. Only recently some epidemiological studies also investigated the association between the concentration of the minerals responsible for the hardness of drinking water (calcium and magnesium) and other chronic diseases. Some case-control studies carried out in Taiwan using aggregated data showed a possible protective effect of water hardness toward the risk of dying from various neoplasms, though more research is needed on the issue, possibly based on individual data, to draw definitive conclusions. There is a substantial evidence that consumption of water with high levels of calcium does not increase, and maybe reduces the risk of developing urinary stones of the most common type in developed countries (calcium oxalate), on the contrary, there is no conclusive evidence on the relation between water hardness and foetal malformations, cognitive functions in old men, diabetes and eczema.
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Cattedra di Igiene, Università degli Studi di Brescia.
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D000368:Aged; D002118:Calcium / Q000032:analysis*; D016022:Case-Control Studies; D003072:Cognition Disorders / Q000453:epidemiology*; D000013:Congenital Abnormalities / Q000453:epidemiology*; D018592:Cross-Over Studies; D003876:Dermatitis, Atopic / Q000453:epidemiology*; D003920:Diabetes Mellitus / Q000453:epidemiology*; D006801:Humans; D007231:Infant, Newborn; D008274:Magnesium / Q000032:analysis*; D008297:Male; D008875:Middle Aged; D009369:Neoplasms / Q000453:epidemiology*; D012307:Risk Factors; D014545:Urinary Calculi / Q000453:epidemiology*; D014867:Water / Q000737:chemistry*; D014881:Water Supply / Q000592:standards*
D014867:Water; D008274:Magnesium; D002118:Calcium