However, therapeutic doses for treating deficiency range from high-dose oral supplements (1,0002,000 g daily) to intramuscular injections of 1 mg, particularly for pernicious anaemia or malabsorption conditions
Dietary changes often accompany the decision to supplement with B12
We advise that the vial be discarded immediately and not used for any research
For vitamin B12 pills, most people take these daily in doses recommended by their doc but taking 1,000 mcg daily is pretty standard
When B12 is deficient, melanin production may be affected, leading to premature loss of hair colour
[15] [18] For borderline results, additional tests such as methylmalonic acid, homocysteine, or holotranscobalamin may be considered