Selenium

The Basics

Selenium is a metalloid element of sulfur found in the soil and food. It naturally occurs in iron, nickel ores, copper, and lead.

It is a vital antioxidant. When combined with Vitamin E, Selenium's antioxidant properties (anti-aging) protect the immune system by eradicating free radicals. It may prevent the formation of certain cancerous tumors (breast, colon, liver, skin, lung), and heart disease (lowers bad cholesterol - LDL). It has been linked to improving skin disorders (poor elasticity, acne, psoriasis). Selenium also plays a part in protecting the liver (alcoholic cirrhosis), thyroid, and pancreas.

Selenium deficiency may present the following symptoms: growth impairment, exhaustion, heart disease, sterility, high cholesterol levels, and liver/pancreatic impairment.

Sources

Selenium is found in Brazil nuts, Brewer's yeast, wheat germ, dairy products, tuna, vegetables, seafood, and brown rice. Many herbs contain selenium, such as rose hips, yellow dock, cayenne, alfalfa, catnip, and fennel seed.

Purchase foods that are not processed. Processing destroys selenium. Avoid frozen, canned, or prepared foods.

Many multivitamin formulas contain selenium. It is also found in antioxidant formulas, nutritional yeast, and individually.

Guidelines and Cautions

Sources suggest the following daily doses: men 70-mcg, women 55-mcg, and pregnant/nursing women 65 to 75-mcg.

The effects of selenium are enhanced with Vitamin E. Vitamin C robs the effectiveness of selenium when combined.

High selenium levels may present the following symptoms: arthritis, hair loss, irritability, yellowish skin, bad breath (garlic), metallic taste, and brittle nails.

Consult a medical professional before giving selenium to a child or combining with other vitamins/supplements, and if taking medication on a regular basis.