Calcium About An important metal, but recent research shows we only get about one third of our needs from modern food. Description Calcium is vital - it is an important part of bones and teeth, but is also necessary for nerve operations, muscle contraction and ensures regular heartbeat, and important in maintaining the immune system. When we don't get enough, the body takes what it needs from our bones, making them thin and brittle. So Calcium in the diets of the elderly is especially important. Deficiency Symptoms Weak bones and teeth. Examples of which are rickets, osteoporosis. Leg cramps because of Calcium's role in muscle contraction. At a Glance... Creates healthy bones, teeth and immune system.
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