Hard water is water that has high mineral content (in contrast with "soft water"). Hard water is formed when water percolates through deposits of limestone and chalk which are largely made up of calcium and magnesium carbonates. The article " Miner Electrolyte Metab. 1997;23(2):88-92. -Intestinal calcium absorption from mineral water.
Wynckel A1, Hanrotel C, Wuillai A, Chanard J." concludes that calcium contained in mineral waters is available for intestinal absorption. In a given normal subject, the only rate-limiting factor for FCA- the fractional intestinal absorption of calcium (FCA) is the amount of total calcium given with foods and drinks.Drinking hard water can contribute a portion of calcium to the diet. When the content of hard water related to calcium increases, the absorption of calcium also increases.This results in increased concentration in the blood. When this is…
