Selenium

From Wiki4CAM

Selenium (pronounced /səˈliːniəm/) is a chemical element with the atomic number 34, represented by the chemical symbol Se. It is a nonmetal, chemically related to sulfur and tellurium, and rarely occurs in its elemental state in nature. It is toxic in large amounts, but trace amounts of it are necessary for cellular function.

Selenium may play a pivotal role in the action of viruses in the body. Laboratory studies at the University of North Carolina at Chapel Hill suggested that selenium deficiency may switch harmless viruses into potentially fatal pathogens. Some researchers have postulated that selenium depletion in a cell may be the trigger that switches HIV into full-blown AIDS.

Selenium also activates substances that protect the eyes from cataracts and heart muscles from damage. As well as binding with toxic metals like arsenic, cadmium and mercury to render them less harmful, it boosts infection fighting elements of the immune system. Selenium is also a natural protection from oxidising free radicals. The action of selenium is similar to Vitamin E and the two work well together agains free radicals.

The recommended daily value is 70 micrograms although therapeutic does to fight AIDS may be in the order of 200 - 400 micrograms. It is recommended that supplementation in excess of 100 micrograms should only be done under medical supervision. Selenium supplementation is contra-indicated for patients receiving anti-coagulant therapy (Warfarin).

Brazil nuts are the richest natural source of selenium but it may also be found in lobster, crab, clams, cooked oysters and whole grains.