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Some of the varied functions of minerals include aiding normal functioning of nerves and muscles, regulating many body processes, and aiding the formation of bones and contributing to their strength.
Minerals are classified as microminerals or macrominerals.
Microminerals (often referred to as trace minerals) are necessary to the body in very small amounts. Examples of such minerals are iron, zinc, and fluorine. Examples of macrominerals are calcium, magnesium, phosphorus, sodium, and potassium.
Macrominerals are those occurring in appreciable amounts in the body, accounting for most of the body content of minerals. Adequate minerals may be obtained from carefully selected food sources. Like some vitamins, excessive amounts of certain minerals can be harmful. So mineral supplements should be taken only when prescribed by a physician.
The presence or absence of vitamins and minerals in the diet can mean the difference between normal and abnormal functioning of the body. Because sodium and potassium are minerals found in almost all foods, it is important to examine them more closely.
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