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Vitamin B12 is a water-soluble B vitamin. B12 is also known as
cobalamin because it contains cobalt. The form of B12 most commonly used
in dietary supplements is called cyanocobalamin. B12 is only produced by
bacteria, so it is only found in food products of animal origin and in
some fermented vegetable products such as tempeh and miso (fermented
soybeans).
B12 works closely with Folic Acid to promote new cell formation and
normal cell life and function. Necessary for proper digestion, protein
synthesis, and carbohydrate metabolism. Vitamin B12 deficiencies have
often been reported in the elderly, and those who have had gastric
surgery. Recently, diminished B12 status has been identified as an
additional risk factor for breast cancer among post-menoplausal women. In
a large number of studies, supplementation with
Vitamin B12 proved to inhibit certain types of auto-immune disorders.
B12 has also been shown to improve symptoms of neurologic disorders in the
elderly, leading to calls for an open clinical trial studying B12's
effects on Alzheimer's disease.
Recommended Dietary Allowances: Men = 6 mcg; Women = 4
mcg; Pregnant Women = 2.2 mcg
For those individuals at highest risk for vitamin B12
deficiency, strict vegetarians and elderly with reduced B12 absorption,
supplements are highly recommended. Most complete multivitamin supplements
will contain vitamin B12 at RDA or higher levels. Higher intakes from
specific B12 or B-complex products may be warranted for high risk
individuals.
IMPORTANCE:
- Helps in the formation & regeneration of red blood
cells, thus helping prevent
anemia
- necessary for carbohydrate, fat & protein metabolism
- maintains a healthy nervous system
- promotes growth in children
- increases energy
- needed for Calcium absorption
- Improves memory
- Promotes concentration
- Increases energy
- Reduces heart disease risk
DEFICIENCY SYMPTOMS:
- pernicious anemia
- poor appetite
- growth failure in children
- tiredness
- brain damage
- nervousness
- neuritis
- degeneration of spinal cord
- depression
- lack of balance
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