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Plant foods don't have vitamin B12 unless they're fortified
Without intrinsic factor, oral supplements won't work, making injectable B12 for humans often necessary
The methylcobalamin does have to be compounded but it is available in most areas
The synthetic form of B12 in shots or injections denotes laboratory-created versions of Vitamin B12, which can mirror the structure and function of naturally occurring B12
Any temperature excursion above 8C accelerates peptide aggregation
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