1 doctor weighed in:

What are side effects of B12 tablets?

1 doctor weighed in
Dr. Michael Dugan
Internal Medicine - Hematology

In brief: Not much

Obviously B12 is part of the normal body function.
High levels are of no consequence, so any side effects would be attributed to something in the formulation to make the tablet, not the B12 itself.

In brief: Not much

Obviously B12 is part of the normal body function.
High levels are of no consequence, so any side effects would be attributed to something in the formulation to make the tablet, not the B12 itself.
Dr. Michael Dugan
Dr. Michael Dugan
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