In response to the question about why vegetarians need Vitamin B12 - Vitamin
B12 is required to convert folate to its active form. If this doesn't
happen, a person can become anemic with lots of big immature red blood
cells. When folate is trapped in its inactive form DNA synthesis slows down
also. Besides this important function, Vitamin B12 also maintains the
sheath that surrounds and protects nerve fibers and promotes normal nerve
growth. Bone cell activity and metabolism also seem to be dependent on
Vitamin B12. Remember that adults need only about 2 micrograms of Vitamin
B12 a day, only 2 millionths of a gram. A deficiency of Vitamin B12 causes
a creeping paralysis of the nerve and muscles, which begins at the
extremities and works inward and up the spine. Early detection and
correction are necessary to prevent permanent nerve damage and paralysis.
Vegans need to find a reliable source of B12 such as fortified soy milk,
meat replacements, or vitamin supplements. People who stop eating foods
that contin Vitamin B12 may take up to 20 years to develop deficiencies
because the body is very good at recylcling much of its Vitamin B12 by
reabsorbing it over and over again. Hope this information is helpful.
Sandi, Dietetic Intern
________________________________________________________________________
Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com