1) It has Anti cancer properties
2) It is an immune system stimulant and has antiviral properties
3) Selenium is essential for Proper Heart Function
4) It is the precursor to the powerful antioxidant Glutathione
5) It is involved in production of thyroid hormone
6) Involved in Muscular strength
7) Required for healthy sperm function
Facts about Selenium and Your Immune System
Selenium benefits the immune system in SO many ways. It is absolutely essential that we get enough selenium in order to deal with the day to day onslaught of pathogens that come into our environment on a daily basis. Yet most of us do not -and it not ONLY leaves us vulnerable to viral infections like influenza. But, a little known function of selenium is that it also protects us from the VIRAL MUTATIONS that make viral infections like the flu change- making the virus MORE DEADLY than it would be in the face of proper selenium levels!
But Selenium and Influenza is only the beginning of how selenium affects our entire immune system. In fact, it is the failure of the immune system that allows a virus to attack the heart causing Heart Failure from Selenium Deficiency and is also at least part of the reason why selenium deficiency is implicated in higher incidences of so many different cancers.
But selenium's BIG role in immune system functioning lies in its ability to help create the potent antioxidant called Glutathione... but since glutathione is an antioxidant, we'll leave that discussion for the section below....
Facts about Selenium as an Antioxidant
Arguably, the most powerful function of selenium is its requirement in the creation of the antioxidant glutathione. Glutathione is the antioxidant of antioxidants. It is made INSIDE each and every cell of the body, creating an interior safe zone against the 'oxidative damage' that occurs in... well, just about every aspect of life on earth.
Unfortunately, glutathione is not easily processed by taking it directly- and formulations that DO absorb well, formulations usually referred to as Reduced Glutathione, are often wildly expensive. But a much easier and cheaper way to 'make' glutathione is to provide the cells with the raw materials in order to make it themselves. And selenium is one of the most important 'ingredients' in the 'recipe' to make glutathione.
"It is well established that in most industrialised
countries, selenium intake is so low and that
it might limit GPx (glutathione)synthesis
in the cells of the body."
EVOLVED REDUCED UTILIZATION OF
SELENOPROTEINS IN HUMAN BIOCHEMISTRY?
While it hasn't been studied from an antiaging perspective, the facts about selenium are that it may be one of the key nutrients keeping the ravages of aging at bay. Going back to our earlier discussion, how does this all effect the immune system? It's simple, if the cells are strong and able to defend themselves against minor invaders like 'free radicals', then the immune system is freed up to do battle against bigger invaders like cancer and the flu.
Facts About Selenium and Your Heart
Selenium is extraordinarily important in heart health, yet Western Medicine has almost completely overlooked the detrimental effects that selenium deficiency can have on the heart. One unquestioned function of selenium on the heart is its role in Heart Failure.
The chronically low levels of selenium in the soil of an area in China called Keshan leads to Heart Failure from Selenium Deficiency. This well-known problem, called Keshan Disease, is cured, in most cases, by the administration of selenium. That's all they need and they are cured of heart failure!!
Here in the US, heart Failure is a HUGE problem- particularly in the elderly (who also tend to have very low selenium levels). But even though Selenium is one of the Known Causes of Heart Failure, selenium levels are almost NEVER checked in patients with recurrent heart failure. Not even in infants with Congenital Heart Failure for whom death is just as likely today as it was in 1970- selenium deficiency is never suspected, nor checked! What a travesty of our health care system.
Heart Disease too- the kind that causes heart attacks - has been linked to selenium deficiency in some studies.
"We observed a significant, inverse correlation
between the plasma selenium and severity of coronary
atherosclerosis. These results confirm those of
epidemological studies.."
Selenium Concentrations in Plasma of Patientswith
Arteriographically Defined Coronary Atherosclerosis
And supplementation of selenium even given AFTER heart attacks also seems to have a protective effect on preventing further heart attacks and deaths.
But while few studies have been done on selenium and incidence of heart attacks and the jury is still out as to whether selenium can help prevent heart DISEASE, there is NO DISPUTE that adequate selenium levels are required in order to prevent Selenium Deficiency Heart Failure.
Facts about Selenium and Cancer
Wow! Selenium has been completely overlooked in the fight against cancer. While the evidence is considered 'equivocal' in the facts about selenium and heart disease, there is a LOT of evidence supporting the fact that selenium deficiency is a MAJOR contributing factor in several different types of cancer... interestingly almost universally in men only...
"The Nutritional Prevention of Cancer Trial
found supplemental Se (200 microg/day, as
Se-enriched yeast) to be associated with
significant reductions in cancer risks
in subjects with pre-treatment plasma
Se concentrations below 120 ng/ml (1.5 nmoles/ml)..."
An analysis of cancer prevention by selenium
Specifically, the strongest evidence for the benefits of selenium as a preventative for cancer is for prostate, lung, and colon cancers. Also, selenium seems to play a role in helping people who have already BEEN diagnosed with cancer to live longer as well- which is of great benefit when cancer survival, even with advanced medical techniques and medications, is still far too low.
Facts about Selenium and Vitamin E
Selenium and Vitamin E seem to work together in a 'synergistic' way. This means that when Vitamin D and selenium work together, their actions may have a more positive effect than if either one is being used by itself.
Also, when one or the other of Vitamin E or Selenium is DEFICIENT, if their is plenty of the OTHER nutrient, then the harm to the body seem to be less. In other words, selenium offers a protective effect against Vitamin E Deficiency and Vitamin E offers a protective effect against Selenium deficiency.
So, when choosing to supplement, it is EVEN BETTER to supplement with both Selenium AND Vitamin E together. And this is one of the reasons why my favorite multivitamin formulation is Dr. Mercola's Whole Food Multivitamin. It contains 200 mg of highly absorbable selenium with 400 IU's of Vitamin E in the form of mixed tocopherols- the ONLY form of Vitamin E that should be consumed!
Keep reading for more Facts about Selenium Overdose
AND
Facts about Selenium Dosages....
Next --->
Getting the Right Selenium Dosage
Are YOU Getting Enough Selenium? See Why I recommend
Dr. Mercola's High Quality Multivitamin
with 200 mcg of BioAvailable Selenium
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