Strontium is a naturally occurring alkaline metal typically found in the minerals celestine and strontianite. It is similar in both physical and chemical properties as both calcium and barium. It can be very susceptible to chemical changes.

The metal occurs naturally in air, dust, soil, foods and drinking water in very small amounts and ingestion at these levels are not harmful. However, water drawn from bedrock aquifers that are rich in the strontium minerals can produce higher levels of strontium in the water supply.

High levels of Strontium in water during infancy and childhood has been directly linked to bone growth and dental changes. Evidence suggests that strontium has even been linked to increased bone density in adults.

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