Trace metal

Trace metals are a group of metals that are present in living organisms in very small amounts. They are essential for the normal functioning of the body, but can be harmful if present in excess. Some examples of trace metals include iron, zinc, copper, and manganese.

Function

Trace metals play a crucial role in various biological processes. They serve as catalysts in enzyme reactions, help in the transportation of molecules across cell membranes, and are involved in the synthesis of hormones.

Sources

Trace metals are obtained from the diet. They are present in a variety of foods, including meat, fish, fruits, vegetables, and grains. The body's ability to absorb these metals can be influenced by various factors, such as the presence of other nutrients and the individual's overall health status.

Deficiency and Toxicity

Both deficiency and excess of trace metals can lead to health problems. Deficiency can result in a variety of symptoms, depending on the specific metal involved. For example, iron deficiency can lead to anemia, while zinc deficiency can impair the immune system.

On the other hand, excess intake of trace metals can also be harmful. For instance, excess iron can lead to hemochromatosis, a condition characterized by excessive iron accumulation in the body.

See Also

• Minerals
• Dietary Supplements
• Nutrition

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