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Typically, vitamin B12 injections range from 100 to 1000 micrograms (mcg) per dose
Regular B12 injections are the only treatments that seem to work, as excess amounts of Vitamin B12 are not stored in the body but rather excreted (it is a water soluble vitamin)
These tests provide insight into whether the body is interfering with its own ability to absorb B12
Opinions vary over the efficacy of administration (parenteral/oral), the amount and time interval of the doses, or the forms of vitamin B 12 (e.g
Int J Obes Relat Metab Disord
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