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For people with an MTHFR mutation, methylcobalamin (as opposed to other forms of B12) is therapeutic
Resist the urge to touch, rub, or massage the treated area for at least six hours
In this article youll learn why supplements and injections raise B12 and why that is harmless, how B12 travels in the blood and why a total number can mislead, what an unexplained elevation can point to, what functional deficiency means despite a high result, what a doctor does next, and when to seek advice
It may reveal large red blood cells (macrocytosis), which is a key sign of B12 deficiency 2
None were detected
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