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When NNMT is overactive, it consumes S-adenosylmethionine (SAM) and reduces levels of nicotinamide adenine dinucleotide (NAD+), a critical coenzyme involved in cellular energy production
This is largely because our stomachs tend to produce less acid as we get older
Alternatively, 1000mcg can be given daily SC/IM for 2-7 days, followed by maintenance treatment
Needle size, injection site, and dosage will differ for every individual
It maintains effectiveness over extended use
For those truly low on B12, getting injectable B12 for humans can be transformative
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