Fact #1 - You need it for much more than building strong bones and teeth, including for blood clotting, the transmission of nerve impulses, and the regulation of the heart's rhythm. Fact #2 - Calcium is the most abundant mineral in our bodies; women carry about 2 1/2 pounds worth. The chalky substance found in rocks is mostly carried in our bones and teeth (about 99%). Your muscles, soft tissues, and body fluids carry the rest.
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