|
Selected
yeast strains incorporate selenium in the form of
selenomethionine and thus are excellent sources of
this natural organic food form of selenium.
 Dietary
Supplement Information
Activity Analysis: FG
/ USP Grade Standardized
at 2000 mcg/per gram/min
Candida
Albicans.........Negative (Verified by DNA Fingerprinting)
Coliform...............................................................Negative
E. coli.................................................................Negative
Staphylococcus aureus..........................................Negative
Salmonella...........................................................Negative
| Packaging:
225 Gram Bulk |
| Ingredient |
Active
Ingredients |
Se |
| Selenium
(as Selenomethionine) |
2000
mcg/g |
or
2000 ppm |
| Other
Ingredients: Saccharomyces cerevisiae brewers
yeast medium |
|
Packaging: 225
gram powder (manufacturers concentrate)
Selenium Item No. SE2000 $24.80 ea 
Also available in 2 kg and 10 kg bulk containers
Products are shipped air mail for orders below $50.xx.
Allow 7 to 10 days for delivery
Educational Information
Yeasts
(of Saccharomyces cerevisiae) are widely used in Beer and
Wine Brewing, Baking of foods such as bread and cookies and in Feeding
of humans and animals. It is very important to
emphasize that yeast are able to naturally metabolize
inorganic minerals into organic forms, similar to what plants
do. Plants do the conversion for us taking the minerals from
the soil. Mineral enriched yeast do this by taking the
minerals from enriched molasses providing one of the best
natural food forms of minerals human can consume. Furthermore,
yeast have an excellent storage mechanism for B-vitamins,
as do other organisms, for factors needed for growth and life.
Yeast is a naturally rich source of proteins, minerals and
B-complex vitamins. Not only does mineral enriched yeast offer
a natural form of mineral, it also provides other nutrients
when consumed.
IMPORTANT
CONCEPTS ON SELENIUM YEAST
As the use of nutritional
supplements increase, there is a growing consumer
demand for more sophisticated information on the products they
are consuming. Some of the questions on Selenium Yeast concern
the importance of selenium in the diet, the bioavailability of
organic Selenium Yeast versus inorganic sources, cancer
reduction capabilities of selenium yeast and toxicity issues.
We hope that this information will be useful to those
considering using selenium supplements. Selenium enriched
yeast is the natural, convenient, sate and economical way to
increase selenium intake.
IMPORTANCE
OF SELENIUM YEAST IN HUMAN DIET
Selenium
is an essential mineral in human nutrition. Selenium
Yeast is a natural dietary selenium supplement with clinically
proven physiological value in improving the selenium status in
man.
Selenium
is a known anti oxidant and is an essential component
of Glutathione peroxidase enzyme, which inactivates tree
radicals.
Selenium
is required in thyroid metabolism while converting
active thyroid hormone (14) into the inactive thyroid hormone
(13).
lnactivates
heavy metals, especially mercury, lead and cadmium.
Selenium
Yeast is reported to protect against radiation
damage, even it given after exposure.
A
maternal selenium intake of 500-750 micrograms in the
form of Selenium Yeast is a safe daily intake, adequate for
infant and maternal needs. This is based on a study on
selenium status of exclusively breast fed infants as
influenced by maternal organic (Selenium Yeast) or non-organic
(selenite) supplementation in 200 lactating women in Finland.
BIOAVAILABILITY
Nutritecks Selenium
Yeast, grown under a carefully monitored fermentation process,
binds the selenium into the same organic compounds as found in
natural foods.
Several
studies have shown that organic selenium such as high
Selenium Yeast is more bioavailable than inorganic sources of
selenium such as selenate or selenite.
In
a study with Finnish men, selenium blood levels of subjects
given organic forms (wheat and yeast) of selenium increased up
to 10 weeks whereas in the selenate group, selenium blood
levels plateaued at a lower levels after 4 weeks (Levander, et
al. 1983). In addition, the study also showed that organic
forms of selenium were stored in the body and then used at a
later time.
A
study of selenium supplementation in breast feeding mothers
and infants clearly showed that Selenium Yeast was safe and
more effective than inorganic selenite in increasing selenium
concentrations of maternal blood serum and milk and infant
serum (Kumpulainen et. al., 1985).
A
Danish study of selenium supplementation in humans,
illustrated that organic selenium is more bioavailable than
selenate and selenite (Clausen and Nielsen, 1988). Organic
selenium compounds, selenomethionine and high Selenium Yeast
gave significantly higher blood serum levels and glutathione
peroxidase activities than either selenate or selenite.
CANCER
REDUCTION RESEARCH
Selenium
Yeast provides a natural protection against several kinds of
cancer. Some recent studies have indicated that
Selenium Yeast can reduce the incidence of some cancers.
Large
scale studies with nutritional supplementation of
micronutrients such as selenium have been carried out
in China. Selenium Yeast in combination with beta carotene and
vitamin F showed that it might reduce the risk of stomach
cancer (Blot, a al., 1993). A trial using inorganic selenium
and a mixture of 26 micronutrients did not detect any
reduction on the incidence or mortality for this type of
cancer (Li, et. al., 1993).
A recent
study showed that Selenium Yeast had a significant effect on
cancer (Clark, et. al. 1996). The large scale American study
showed that patients treated with Selenium Yeast had a
significant reduction in total cancer mortality, total cancer
incidences and incidences of lung, colorectal and prostrate
cancers.
TOXICITY
OF SELENIUM VERSUS SELENIUM YEAST
The
"safe and adequate range" for selenium consumption,
established by the US. Food and Nutrition Board, has been set
at 50 to 200 mcg/day.
Natural
selenium that humans consume is in the form of organic seleno-proteins
such as seleno-methionine and seleno-cysteine. Foods
such " as fish and whole grain cereals are especially
rich in organic selenium compounds (Schrauzer and White 1978).
Selenium
Yeast contains high levels of seleno-methionine. It
has been estimated that up to700/1000of the selenium in
Selenium Yeast is in the form of seleno-methionine.
Evaluations
of toxicity of different forms of selenium have shown
that high Selenium Yeast is less toxic than inorganic forms of
selenium such as sodium selenate and selenite.
A study
with rats showed that high doses (1.5 and 3.0 mg/kg body
weight) of organic selenium in Selenium Yeast did not have any
toxic effects after 14 days. This level of selenium is much
higher than the theoretical toxic level for inorganic selenium
(Leiras, internal report).
A
comparison of the toxicity of a selenite and a Selenium Yeast
diet in rats showed that Selenium Yeast was much less
toxic (Spallholz and Raftery 1987). No hepatotoxicity,
cardiotoxicity or splenomegaly to 16 ppm dietary Se was
observed in rats fed high Selenium Yeast over an 8 week
period. Animals fed selenite at the same level showed signs of
various toxicities.
WARNING
Selenite
and selenate are inorganic chemicals. Simple blends
of these with yeast do not make organically bound selenium.
One should request the selenomethionine analysis of each lot
to ensure that the effective nutritional form of selenium is
present.
QUALITY
CRITERIA FOR SELENIUM YEAST
Selenium
is an essential trace element which occurs in cereals
and primarily in the form of selenomethionine. This naturally
occurring amino acid is the most important food form of
selenium.
Selenomethionine
is well absorbed and retained. From selenomethionine,
all other needed selenium compounds are produced in the body.
On the other hand, selenomethionine, like its sulfur analog,
methionine, cannot be synthesized efficiently in the human
organism.
All
quality nutritional selenium supplements should therefore
contain selenomethionine
Selected
yeast strains incorporate selenium in the form of
selenomethionine and thus are excellent sources of
this natural organic food form of selenium.
However,
low-grade selenium yeasts containing little or no
selenomethionine are also marketed. These yeasts are often
claimed to contain organically bound" selenium when in
fact their selenium is inorganic!
Inorganic
selenium compounds are not normal food forms of selenium;
they are less well absorbed and retained.
Quality
of selenium yeasts contain virtually all of the selenium in
the form of selenomethionine.
When
ordering Selenium Yeast, make sure to request analytical
certification as to its selenomethionine content for each
batch.
REFERENCES
Blot
et.al., 1993 Nutrition intervention trials in Linxian China:
Supplementation
with specific vitamin/ mineral combinations, cancer incidence
and disease-specific mortality in the general population. J.
Natl. Clin. Inst. 85 1483- 1492.
Leiras.
Single dose toxicity of selenium yeast. Internal report #
64013-8530.
Borglund,
M and Akesson, B. 1988 Effect of selenium supplementation on
the distribution of selenium in plasma proteins of health
subjects. lnternat. J. Vit. Nutr. Res. 58, 97-102.
Clark, L
C. et. al., 1996 Effects of selenium supplementation cancer
prevention in patients with carcinoma of the skin. iouri
American Medical Assoc. 276 (24), 1957-1963.
Clausen,
J. and Nielsen, S. A. 1998 Comparison of whole blood se nium
values and erythrocytes of glutathione peroxidase activities
normal individuals on supplementation with selenate, seleni L-selenomethionine
and high selenium yeast. Biol. Trace EIem. R15, 125-138.
Kumpulainen,
i., Salmenpera,
L, Siimes, M.A., Koivistoinen, P., a Perheentupa, i. 1985
Selenium status of exclusively breast-I infants as influences
by maternal organic or inorganic selenium si plementation. i.
Amer. Clin. Nutr. 42, 829-835.
Levander,
O.A., Alfthan, G., Arvilommi, H., Gref C.G., Huttunen, i
Kataja, M. Koivistoinen, P. and Pikkarainen, i. 1983
Bioavailability selenium to Finnish men as assessed by
platelet glutathic peroxidase activity and other blood
parameters. Amer. Soc. CIin N37, 887-897.
Li., et.
al., 1993 Nutrition intervention trials in Linxian China
Multiple vitamin/ mineral supplementation, cancer incidence,
disease-specific mortality among adults with esophageal dyspla
i. Natl. Clin Inst. 85, 1492- 1498.
Schrauzer,
G.N. and White D. A. 1978 Selenium in human nutritition
dietary intakes and effects of supplementation. Bioorgan. Chem
303-318.
Spallholz,
i. E. and Raftery, A. 1987 Nutritional, chemical toxicological
evaluation of high selenium yeast. In The International
Symposium of Se in Biology and Medicine 516- 52
Information
provided on this site is for educational use only, and is
not intended as medical advice. If you have any serious health
concerns you should always check with your health care
practitioner before self-administering remedies. This
information has not been evaluated by the US Food and Drug
Administration. These products are not intended to treat, cure
or diagnose any medical condition.
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