(HealthDay News) -- Vitamin B-12 is an essential vitamin that
supports the nervous system, creation of red blood cells and
production of DNA. It's primarily found in seafood, meat and dairy
If you have low levels of vitamin B-12, it could be because
you're not eating enough of these products, or you're having
trouble absorbing the vitamin from foods.
The American Academy of Family Physicians says possible reasons
for poor absorption of vitamin B-12 include:
- An illness known as pernicious anemia, which kills stomach
cells that absorb this vitamin.
- Crohn's disease, celiac disease or other intestinal problems
that affect absorption.
- Abnormal growth of bacteria in the stomach.
- A side effect of prolonged use of certain drugs, including
those that help manage heartburn or ulcers.
- A prior surgery on the intestines or stomach.
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