(HealthDay News) -- Vitamin B-12 is an essential vitamin that's found in dairy foods and many types of meat. It plays a role in the health of your nervous system and in the production of red blood cells.
The American Academy of Family Physicians says here are the possible health consequences of a vitamin B-12 deficiency:
- Dementia.
- Depression.
- Anemia.
- Nervous system abnormalities.
- Possible increased risk of heart disease and stroke, if you also have above normal levels of an amino acid called homocysteine.