Order Supplements from GNC: Multivitamins, Diet, Energy
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Men's & Women's Multivitamins, CoQ10, Omega-3 Fish Oil supplements...
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Recommended Daily Values (DV)
* These statements have not been evaluated by the Food and Drug Administration. This product is
not intended to diagnose, treat, cure, or prevent any disease.
The "essential" vitamins and minerals, as defined by government agencies and nutrition experts, are those that are
needed for metabolic function, but are not manufactured by our bodies. We must obtain these ingredients from outside
sources, and thus they are an "essential" part of our diets.
Multiple Vitamins often contain
Vitamins A, C, D, E, K, Thiamin, Riboflavin, Niacin, Vitamin B6, Folic Acid, Vitamin B12, Biotin, Panthothenic Acid,
Calcium, Iron, Phosphorus, Iodine, Magnesium, Zinc, Selenium, Copper, Manganese, Chromium and Potassium. Premium
formulations contain larger percentages of these, as well as additional nutrients.
Some major components of most multivitamins:
Vitamin E is a family of essential fat-soluble nutrients
(tocopherols) that act as powerful antioxidants.
B-complex vitamins are fundamental to energy production, metabolism, growth, and maintenance of
normal homocysteine levels, provided they are normal to begin with.*
Zinc is involved in carbohydrate, fat, and protein metabolism, as well
as DNA and RNA replication. Zinc functions as an antioxidant; aids in retaining healthy bone structure
development, healthy immune function, and healthy vision.*
Selenium is an essential component of the glutathione peroxidase antioxidant system, which helps combat the
effects of free radicals and plays an important role in thyroid hormone metabolism. Selenium has also been
shown to help support a healthy immune system.*
Magnesium is essential for the formation and maintenance of healthy bones and teeth, which is where 70 percent
of the body’s magnesium is found.*
Multivitamins and Healthy Immune Function
An October 2007 article published in the British Journal of Nutrition summarizes the roles of selected vitamins
and trace elements in immune function.
Adequate intakes of micronutrients are required for the immune system to function efficiently. Micronutrient
deficiency suppresses immunity by affecting antibody responses, leading to imbalances in the immune system.
This situation increases susceptibility to infections, which increases disease and death risk. In addition,
infections aggravate micronutrient deficiencies by reducing nutrient intake, increasing losses, and
interfering with utilization by altering metabolic pathways. Inadequate intakes of micronutrients are
common in people with eating disorders, smokers (active and passive), individuals with chronic alcohol
abuse, certain diseases, during pregnancy and lactation, and in the elderly.
Micronutrients contribute to the body's natural defenses on three levels by supporting physical barriers
(skin/mucosa), cellular immunity and antibody production. Vitamins A, C, E and the mineral zinc assist
in enhancing the skin barrier function. The vitamins A, B6, B12, C, D, E and folic acid and the minerals
iron, zinc, copper and selenium work in synergy to support the protective activities of the immune cells.
Finally, all these micronutrients, with the exception of vitamin C and iron, are essential for the
production of antibodies.
Overall, inadequate intake and status of these vitamins and minerals may
lead to a suppressed immune system, which increases the risk of infections and aggravates malnutrition.
Therefore, supplementation with a multivitamin/mineral that includes these micronutrients can support the
body's natural defense system by enhancing all three levels of immunity.
Br J Nutr. 2007 Oct;98 Suppl 1:S29-35.
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