Deficiencies can occur with medical conditions such as atrophic gastritis (which causes thinning of the stomach lining), pernicious anaemia, Crohns disease, celiac disease, lupus, or other immune system disorders and certain medications
[4] You might notice your urine has a stronger B-vitamin odor as well (similar to when taking multivitamin pills), again, normal
The even better news: side effects from vitamin B12 supplements are usually mild, says Richard Foxx, M.D., a board-certified physician who treats hormonal disorders and nutritional deficiencies
Vitamin B12 injections Vitamin B12 plays an important part in maintaining normal functioning in the brain and nervous system
This calculator does not take the place of medical advice