Before taking, speak with your doctor if you are allergic to vitamin b12, have a genetic condition called optic atrophy, have blood in your urine, polycythemia, an ongoing infection, low iron or folate levels, are pregnant or plan to become pregnant, are breastfeeding or plan to breastfeed
In addition, two antibody tests can help confirm a diagnosis of pernicious anemia
Therefore, health professionals advise vegetarians to regularly take supplements of B12, and keep a check on their vitamin B12 level
The same old line about too much B12 being harmful (which is complete rubbish) is often used in these letters and if the patient is unaware of the truth about B12 they might quietly comply with the harmful removal of their vital treatment
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