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While B12 is water-soluble with no established upper safe limit (according to NHS and EFSA guidance), this does not preclude the possibility of adverse reactions, particularly from injectable forms
Importantly, its not necessarily an either-or choice
A: This injection is generally well-tolerated
Your B12 shot frequency matters so much because B12 is water-soluble, so any excess is excreted within hours
Frequently Asked Questions Some people notice changes in mental clarity and physical energy within the first two to four weeks
Most injection plans use a short loading phase, then maintenance every 13 months depending on the cause (NHS
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