Browse water filter devices that reduce levels of the water contaminant: Calcium
Calcium is an alkaline metal that is essential for living organisms to survive, it is derived from nearly all rock with the greatest concentrations being in limestone and gypsum. Almost all (99%) of calcium within a human body is stored within bones and teeth, while the remaining 1% serves as a signal for vital physiological processes in human metabolism. Calcium makes hard water and is often filtered out of drinking water to prevent limescale. Calcium is not usually harmful to humans but too much can cause stomach pain and diarrhoea.
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