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How often should I get B12 injections
For those deficient in B12, one shot may provide symptom relief for 5-7 days on average before you start feeling fatigued or off again
monthly) to assess progress and any side effects
When administered by a licensed professional in a sterile environment, B12 injections are considered very safe
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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