Dietary selenium deficiency


Dietary selenium deficiency

Description, Causes and Risk Factors:

ICD-10-DC: E59

Selenium deficiency is relatively rare in healthy, well-nourished individuals. It can occur in patients with severely compromised intestinal function, those undergoing total parenteral nutrition, and also on advanced-aged people.

Dietary selenium deficiency

It can occur in patients with severely compromised intestinal function, those undergoing total parenteral nutrition, those who have had gastrointestinal bypass surgery, and also on advanced aged people.

Alternatively, people dependent on food grown from selenium-deficient soil are also at risk. For some time now in medical literature it has been noted the pattern of side-effects associated with cholesterol-lowering drugs statins resembles the Pathology of selenium deficiency, although New Zealand has low levels of selenium in its soil, adverse health effects have not been detected.

Selenium deficiency may only occur when a low selenium status is linked with an additional stress such as chemical exposure or increased oxidant stress due to vitamin E deficiency.

There are interactions between selenium and other nutrient such as iodine and vitamin E. The interaction is observed in the etiology of many deficiency diseases in animals and pure selenium deficiency is in fact rare.

Symptoms:

    General fatigue.

  • Hypothyroidism.

  • Mental fatigue.

  • Reproductive disorder.

Diagnosis:

Diagnosis is generally made clinically. High levels of thyroid stimulating hormone are often an indication of selenium deficiency.The selenium content of normal adult humans can vary widely. Values from 3 mg in New Zealanders to 14 mg in some Americans reflect the profound influence of the natural environment on the selenium contents of soils, crops, and human tissues. Approximately 30 percent of tissue selenium is contained in the liver, 15 percent in kidney, 30 percent in muscle, and 10 percent in blood plasma. Much of tissue selenium is found in proteins as seleno-analogues of sulphur amino acids; other metabolically active forms include selenotrisulphide and other acid-labile selenium compounds.

Treatment:

The incidence of dietary selenium deficiency is closely associated with very low dietary intakes of selenium and poor selenium nutritional status. Selenium supplementation protects people from developing selenium deficiency but cannot reverse heart muscle damage once it occurs.

Food Sources of Selenium: Brazil nuts, canned tuna, beef spaghetti, meat sauce, cod, turkey, beef chuck roast, chicken breast, enriched pasta, egg, cottage cheese, oatmeal, white or brown rice.

NOTE: The above information is educational purpose. The information provided herein should not be used during any medical emergency or for the diagnosis or treatment of any medical condition.

DISCLAIMER: This information should not substitute for seeking responsible, professional medical care.

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