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Minerals are inorganic substances required by the body for a variety functions such as formation of bones and teeth, essential constituents of body fluids and tissues, components of enzyme systems, and nerve function.
Some minerals are needed in larger amounts than others, e.g. calcium, phosphorus, magnesium, sodium, potassium and chlorine. These are called macrominerals. Others are required in smaller quantities and are called trace minerals or microminerals, e.g. iron, zinc, iodine, fluoride, selenium and copper. Despite being required in smaller amounts, trace minerals are no less important than other minerals.
Like vitamins, minerals cannot be produced by the body and eating a varied diet will ensure an adequate supply of most minerals for healthy people.
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