Selenium is a trace mineral which works with Vitamin E in preventing free radical damage to cell membranes
It is an antagonist to heavy metals such as lead, mercury, aluminium and cadmium
Low levels of selenium are linked to a higher risk for cancer, cardiovascular disease, inflammatory diseases and other conditions associated with increased free-radical damage, including aging and cataract formation
Selenium depleted soils produce selenium deficient foods
Selenium deficiency is associated with an increased risk for cancer, heart disease and low immune function
During pregnancy and lactation, selenium requirements increase, as it is essential for proper foetal growth.
Selenium is linked to sudden infant death syndrome (SIDS), which has its highest occurrence in areas where the selenium content of the soil and diet is the lowest
Selenium levels tend to be very low in low birth weight babies
Although there is no specific RDA for selenium, a daily intake of 50 – 200 micrograms is often recommended
At high-intake levels (daily intake in excess of 1,000 micrograms), selenium can produce toxicity
For children, a good dosage recommendation is 1.5micrograms per pound of body weight (2.2lbs to the kg)
