by
Mike Adams, the Health Ranger, NaturalNews Editor
(NaturalNews) The CSPI is reportedly suing Bayer over the company's claims
that the selenium in its
"One-A-Day" multivitamin formula helps prevent prostate cancer (http://www.reuters.com/article/heal...).
It's rare to see NaturalNews actually siding with Bayer on anything, but in
this case, I think it's worth pointing out that selenium is, indeed, a very
helpful nutrient for preventing cancer (see below).
While I personally don't consume or recommend anything from Bayer
(and certainly not their multivitamin formula), I think it's important to
bring you these quotes about the anti-cancer properties of selenium,
a trace mineral lacking in the diets of many. (By the way, one of the top
sources for organic selenium is
Brazil
Nuts.)
Selenium
inhibits cancer growth in animals. Low soil levels of selenium (probably
associated with low dietary intake), have been associated with increased
cancer incidence in humans. Blood levels of selenium have been reported to be
low in patients with many cancers, including lung
cancer. In preliminary reports, people with the lowest blood
levels of selenium had between 3.8 and 5.8 times the risk of dying from cancer
compared with those who had the highest selenium levels.
- The
Natural Pharmacy: Complete A-Z Reference to Natural Treatments for Common
Health Conditions by Alan R. Gaby,
M.D., Jonathan V. Wright, M.D., Forrest Batz, Pharm.D. Rick Chester, RPh.,
N.D., DipLAc. George Constantine, R.Ph., Ph.D. Linnea D. Thompson, Pharm.D.,
N.D.
Larry Clark presented evidence that supplemental selenium could reduce cancer
death rates by as much as 50%. 1,312 patients were given 200 mcg. of selenium
daily. The patients receiving selenium had a rise of 67% in their blood
selenium level. The patients receiving selenium had a 67% decrease in cancer
of the prostate, a 58 percent decrease in colon or rectal
cancer and a 45% decrease in lung cancer. This suggests that possibly up
to 100,000 lives a year might be saved in the USA by the simple addition of
selenium to the diet. Why Does This Happen?
- A
Physician's Guide To Natural Health Products That Work by
James A. Howenstine, MD
Selenium is needed by important immune
system cells known as T cells. Selenium helps the T cells produce
cytokines, which are used as messengers between and inside the cells. Adequate
selenium may be needed to increase resistance to HIV infection. Selenium is
also needed by white blood cells to fight microorganisms. Low dietary intakes
of selenium may make people more vulnerable to Keshan disease.
Keshan disease can cause heart problems. Excesses of selenium create
methylated selenium in the body.
- Vitamins
and Minerals Demystified by Dr. Steve
Blake
Taking 200 micrograms of selenium daily for about seven years reduced the
occurrence of all cancers
in a group of 1,300 older people by 42 percent and cancer deaths by nearly 50
percent compared with those on a sugar pill or placebo.
Selenium had the greatest impact on prostate
cancer, slashing occurrence by 69 percent. Selenium also decreased rates
of colorectal cancer 64 percent and lung cancer 39 percent.
- Miracle Cures:
Dramatic New Scientific Discoveries Revealing the Healing Powers of Herbs,
Vitamins, and Other Natural Remedies by
Jean Carper
Recent large scale studies in Linxian, China found reduced risk of cancer when
selenium supplements were given to those living in selenium-deficient areas.
Other studies have shown that selenium supplements protect against some types
of cancer such as rectal, ovarian, colon, lung and cervical cancers. However,
there are also studies, including the Harvard Nurses Health Study which do not
show a protective role for selenium against cancers at any major site.
Laboratory studies have shown that selenium can slow tumor cell growth.
- The
New Encyclopedia of Vitamins, Minerals, Supplements and Herbs by
Nicola Reavley
People with AIDS tend to have low levels of selenium. That shortage puts a
stress on the immune system, because selenium is needed to avoid oxidative
stress. Selenium should be taken with other major antioxidants to optimize immune
function. Several studies have shown that low levels of selenium are
associated with an increased risk of cancer. This is especially true for
stomach, esophageal, colon, rectal, and prostate cancers. Interestingly,
garlic, onions, broccoli, and whole grains are recommended to prevent cancer,
and all of them are good sources of selenium.
- The
Natural Physician's Healing Therapies by
Mark Stengler, N.D.
Selenium has been studied to determine its role in both the causation and the
prevention of cancer. The epidemiological evidence is derived from a few
geographical correlation studies, which have shown that the risk of cancer is
inversely related to estimates of per capita selenium intake, selenium levels
in blood specimens, or selenium concentrations in water supplies. It is not
clear whether this relationship applies to all types of cancer or only to
cancer at specific sites such as the gastrointestinal tract.
- Diet,
Nutrition and Cancer by Committee on
Diet, Nutrition, and Cancer, Assembly of Life Sciences National Research
Council
Patients with malignant neoplasms had low selenium levels, whereas healthy
controls and those with precancerous lesions both had higher selenium levels.
These results suggest the need for longer treatment periods with selenium.
Steady supplementation with selenium-enriched yeast may have allowed for a
more rapid increase in maintenance of higher selenium levels. I conclude that
these are encouraging results demonstrating the effect of selenium therapy in
the treatment of precancerous dysplastic lesions of the oral cavity.
- Herbal
Medicine, Healing and Cancer: A Comprehensive Program for Prevention and
Treatment by Donald R. Yance, Jr.,
C.N., M.H., A.H.G., with Arlene Valentine
Although most people get enough selenium from their diet, the soils in some
areas of the country are low in this mineral. Evidence suggests that selenium
supplements may protect against some forms of cancer. What is the Scientific
Evidence for Selenium? Selenium in supplement form has been associated with a
lower risk of cancers of the prostate, colorectal, and lung, as well as a
substantial reduction in cancer deaths. Dietary sources of selenium are
associated with a lower risk for cancers of the esophagus and stomach.
- The
Natural Pharmacist: Your Complete Guide to Reducing Cancer Risk by
Richard Harkness
In areas of China with high rates of hepatitis B and primary liver
cancer, epidemiological surveys demonstrated that high levels of dietary
selenium reduce liver cancer incidence and hepatitis
B infection. Animal studies showed that selenium supplementation reduced hepatitis
B infection by 77.2% and precancerous liver lesions by 75.8% (Yu et al. 1997).
In an 8-year follow-up trial in 130,471 Chinese, those who were given a
selenium-spiked table salt
showed a 35.1% reduction in primary liver cancer, compared with the group
given salt without the added selenium.
- Disease
Prevention and Treatment by The Life
Extension Editorial Staff
We know that when animals are given foods
with selenium compounds added to them and then given a chemical that causes
colon cancer, there are fewer polyps and pre-cancerous cells in the
selenium-fed animals. Adults with low blood plasma selenium levels are 3-4
times more likely to develop one or more adenomatous polyps. Vitamin C appears
to work synergistically with selenium in this regard.
- You
Don't Have to be Afraid of Cancer Anymore by
Bill Sardi
Selenium, an essential trace mineral and vital antioxidant,
works synergistically with vitamin
E. One study concludes that supplemental beta-carotene and selenium
enhanced immune function in a healthy elderly group. Dozens of animal and in
vitro studies point to selenium in the prevention and treatment of cancer. A
review article cites many epidemiological studies showing a significant
inverse relationship between selenium intake and human cancer risk. Most
recently, research has proven a role for selenium in the prevention of colon
cancer.
- Gary Null's
Power Aging by Gary Null
Several studies have shown that selenium possesses definite anticancer
characteristics. Some suspect that among other things, selenium helps out by
slowing down cancer at its very earliest stages, permitting cells to heal
themselves before they are taken over by the cancer process. In any event,
several highly respected researchers have repeatedly shown that when
laboratory animals are injected with cancer cells, supplementing their diet
with a little extra selenium substantially lowers the subsequent tumor rate.
- The
Practical Encyclopedia of Natural Healing by
Mark Bricklin
Epidemiological studies suggest that the risk of cancer is reduced in areas
where the soil is high in selenium. Blood samples taken from large groups of
people also show that they are more likely to develop cancer if they have low
blood levels of selenium and the antioxidant selenium-containing enzyme,
glutathione peroxidase. Low serum, dietary and soil selenium levels are
particularly associated with lung, gastrointestinal tract and prostate
cancers. Selenium may be most effective when combined with vitamin E.
- The
New Encyclopedia of Vitamins, Minerals, Supplements and Herbs by
Nicola Reavley
Cancer rates drop as selenium is added to the diet. Selenium stops all phases
of the cancer cascade. Selenium stops initiation by increasing adaptability at
the cellular and humoral levels, protecting the DNA from disruption by
chemical carcinogens, and by stopping viral oncogenesis. Selenium disrupts
cancer promotion by working as an antioxidant, an enzyme nourisher, and an
immune system strengthener. In addition, selenium has been shown to depress
the growth rate of established tumors. Organically grown foods have much more
selenium than foods raised with chemical fertilizers.
- Breast
Cancer? Breast Health! The Wise Woman Way by
Susun S. Weed
Selenium has also induced "apoptosis" (programmed cell death) in
cancer cells. A recent double-blind study following over 1,300 people found
that those given 200 mcg of yeast-based selenium per day for 7 years had a 50%
drop in the cancer death
rate compared with the placebo group. Another recent trial found that men
exposed to the most dietary selenium (as indirectly measured by toenail
selenium levels) developed 65% less advanced prostate cancer than did men with
the lowest levels of selenium. Selenium is also essential for healthy immune
functioning.
- The
Natural Pharmacy: Complete Home Reference to Natural Medicine by
Schuyler W. Lininger, Jr. DC
To lower the risk of developing liver cancer, take 150 micrograms of selenium
(any form except selenomethionine) daily on an ongoing basis. A clinical trial
in China involving over 100,000 people found that taking supplemental selenium
reduced the rate of liver cancer by 35 percent over an eight-year period. When
the selenium supplement was discontinued, liver cancer rates began to rise
again. Selenium is especially helpful for people infected with hepatitis B.
Smoking, drinking, and inadequate vitamin A intake increase the risk of liver
cancer in people infected with hepatitis B.
- Prescription
for Herbal Healing: An Easy-to-Use A-Z Reference to Hundreds of Common
Disorders and Their Herbal Remedies by
Phyllis A. Balch, CNC