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Vitamin B12 is reduced to cobalamin regardless of form (cyan-, methyl-, adenosyl-, hydroxo-) then re-assembled as methylcoblamin by MS for use in the cytosol, or adenosylcobalamin by MM for use in the mitochondria
Dissolution is typically complete without clumping, and the benzyl alcohol rarely triggers adverse reactions at standard concentrations
Intramuscular injection may be clinically preferable to oral supplementation in specific situations: For individuals whose bloodwork shows deficiency or insufficiency in B12, vitamin D, or other measurable nutrients, and who have not achieved adequate levels through oral means
By helping to increase the production of red blood cells, vitamin B12 may improve oxygen delivery to the muscles during exercise
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