Selenium
Selenium is a crucial trace mineral necessary for multiple body functions. It is important for the immune system function and thyroid function.
Functions Of Selenium
- For thyroid function-Selenium is required for the metabolism of thyroid hormones.
- An essential element of various enzymes-The mineral is contained in certain enzymes.
- Synthesis of proteins-Selenium is utilized in your body to produce proteins.
Food Sources
Selenium food sources are mainly obtained from animals including:
- Seafood
- Red meat
- Poultry
- Eggs
- Organ meats
Plant sources of selenium include:
- Whole grains
- Garlic
- Onions
- Leeks
- Brazil nuts
RDA
- Adult men and women -55 micrograms
- Pregnant women-60 micrograms
- Breastfeeding women -70 micrograms
People At Risk Of Selenium deficiency
- Individuals with severely restrictive diets-These persons are susceptible to most nutrient deficiencies including selenium.
- Individuals with particular conditions-People with severe gastrointestinal disorders are at risk of selenium deficiency because of malabsorption.
Selenium Deficiency
Selenium deficiency is rare, considering that most persons can acquire adequate amounts of it from a nutritious and varied diet. However, its deficiency can result when the mineral intake is too limited. The signs and symptoms of selenium deficiency include the following ;
- Poor immune function
- Weakening of muscles i.e. heart and skeletal
Selenium Toxicity
Toxicity is likely from the intake of large doses of selenium supplements(over 400 micrograms per day). Symptoms of selenium toxicity include:
- Nausea
- Vomiting
- Irritability
- Tiredness
- Nail discolouration
- Hair loss
Nutrient Interactions With Selenium
Selenium and iodine work jointly to promote the proper function of thyroid glands. Iodine is a constituent of the thyroid hormone while selenium aids in the conversion of the thyroid hormone into its functional form.
Drug Interactions With Selenium
Drugs that may lower levels of selenium include:
- Cisplatin- a chemotherapy drug used in
- Corticosteroids, such as prednisone
- Clozapine (Clozaril)
Certain birth control pills may increase the levels of selenium in the blood.
Selenium is important in your body for certain functions including maintaining the immune system and functioning of thyroid hormones . You are unlikely to be deficient in selenium if you include a varied diet. Ensure that you incorporate various nutritious foods to likely meet your required selenium.