to a recent conference call with Dr. Larry McDade on Ellagic
Here To Listen
is an essential micro-nutrient whose best source is seafood
given its gradual disappearance from intensively farmed
soils. Selenium is toxic in extremely high doses but regarded
as safe at normal supplement levels of 50-200 micrograms/day.
A potent antioxidant, Selenium is an important co-factor
for the body's natural antioxidant glutathione peroxidase
system. Selenium in partnership with Vitamin E protects
against cancer and prevents lipid peroxidation. Selenium
is an effective detoxifier of heavy metals and boosts
immune function against bacterial and viral infections.
most important recent study on Selenium came from the
University of Arizona where researchers were looking at
the relationship of Selenium to specific skin cancers
in 1,312 volunteers with an average age of 62 and a history
of skin cancer. Each participant received either 200 micrograms
of yeast-Selenium daily, or a matching placebo.
the study had been in progress for 10 years, researchers
found that, although incidence of non-melanoma skin cancer
had not been influenced by the supplement, new cases of
life- threatening cancers were 37 percent lower among
those taking Selenium with highly significant reductions
in the incidence of colorectal and prostate cancer. The
probability was less than 1 in 1,000 that this beneficial
effect occurred by chance. Possibly more significant,
the study found that the total cancer death rate was 50
percent lower in the treated group, with mortality from
lung cancer significantly and substantially reduced.
second lesson from the study was that larger than previously
used doses of Selenium, 200 mcg per day in the form of
Selenium yeast, were extremely well-tolerated with no
side effects or other evidence of toxicity, contrary to
earlier reports and concerns that such high doses of Selenium
would be toxic. Most Americans get less than 100 micrograms
of Selenium a day without supplementation, as the trace
mineral occurs naturally in food, but in reduced amounts
secondary to gradual depletion from soils.