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Diet, supplements (e.g., niacin, NR), and exercise help, but may not suffice post-40 due to inefficiency and depletion.[18][19] Oral precursors like NMN increase NAD+ but bioavailability varies
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Documented total vitamin B12 levels less than 250 pmol/L within the past three months
These are static math examples, not mixing instructions for human use
Do B12 injections actually help you lose weight
The injections ride along to support your livers fat processing, and your energy if your B12 levels are low, while you do that work
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