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Vitamin B12 plays some very important roles in our bodies, like forming red blood cells and maintaining nerve function.* To perform these roles, B12 needs to be converted by the body into a form it can utilize
A reticulocyte count may also be checked, as a rise in reticulocytes (young red blood cells) within the first week indicates effective bone marrow response
For laboratory research only
The most common forms used are cyanocobalamin (stable, widely available) and methylcobalamin (the active form, preferred by some providers for neurological support)
Zhang SH, Reddick RL, Piedrahita JA, Maeda N
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