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If a deficiency does not exist, supplementing Vitamin B12 will likely not have the same positive effect. B12 injections are available, for $15 to $50 a pop, at spas and wellness centers, but its smart to talk to your physician before you spend money on them

Vitamin B12 (cobalamin) is essential for: Energy production Red blood cell formation Brain and nerve function Mood regulation Healthy sleep cycles The problem

When results fall in this borderline range, a methylmalonic acid test is recommended to confirm whether a functional deficiency exists

You can't use 96372 for a vaccine, and you can't use 90471 for a therapeutic drug

A preparation calculator converts your chosen volume into exact per-unit concentrations