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Description
It is used to treat low levels of vitamin B12 in your body
In contrast, an individual who injects 1,000g of vitamin B12 will only absorb a small portion, with the remainder being excreted in urine within hours

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Methylcobalamin facilitates the following reactions: Works with folate to convert homocysteine to methionine, which is needed to make S-adenosylmethionine (SAM)
Why is it so important to inject the water down the side of the vial