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Importation may also breach customs and therapeutic goods rules
Smits RM, et al
There are many driving factors in B12 deficiency including diet, vitamin B12 malabsorption from food, pernicious anemia, postsurgical malabsorption, and in many cases, the cause is unknown
Without biomarker context, supplementation may represent unnecessary expense and potential metabolic interference rather than targeted intervention
Higher dose protocols or combination IV drips that include glutathione may range from $279 to $399 or more
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