Vitamin B12 is essential in helping to
maintain the normal functioning of all body cells, especially
those of the bone marrow, gastrointestinal tract and nervous
system. There is increasing evidence that vitamin B12 may play
a role in the prevention of some types of cancers. Smokers,
for example, have been found to have significantly decreased
levels of pre-cancerous bronchial squamous metaplasia when given
vitamin B12 (500 mcg/day) and folic
acid supplements than those receiving placebo. B12 is also
necessary in the formation of red blood cells.
The metabolism of vitamin B12 is closely correlated with folate
(folic acid) metabolism. Vitamin B12 deficiency is more likely
in very strict vegetarians, since the best sources of vitamin
B12 are meat, meat products, and to a lesser extent, milk and
dairy products, some seafoods and egg yolk. This vitamin is
also essential for efficient iron
absorption.
Vitamin B12 - Functions
and Benefits
Helps in the formation and regeneration of red blood cells,
thus helping prevent anemia and iron absorption
Helps maintain a healthy nervous system
Promotes healthy growth in children
Increases energy
Common Deficiency Symptoms
Pernicious anemia
Stunted growth in children
Fatigue
Brain damage, nervousness, neuritis, depression and degeneration
of the spinal cord
Recommended Daily Value:
6 mcg
The amount of vitamins and minerals as set by the RDA only provides
us with the bare minimum required to ward off common vitamin
deficiency diseases such as beriberi, rickets, scurvy and night
blindness. Water soluble vitamins, such as vitamin C, B and
folic acid, must be replenished daily and have been shown to
exhibit numerous positive health effects when taken in amounts
that are greater than the recommended daily allowance.
- If you are pregnant or
nursing do not take any form of vitamin supplement unless you
have discussed its use with your doctor. -
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