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absorption is usually still adequate for most people

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This number is called the serum B12 level

Others pair NAD+ with IV vitamin therapy, B12 injections or amino acid injections

Signs You Could Benefit from B12 Injections Your body doesnt make vitamin B12, but it requires it to perform crucial functions, such as making DNA, performing neurological functions, and generating red blood cells

A typical protocol looks like this: Initial loading (for severe deficiency or pernicious anemia): Daily or every-other-day injections for 1 to 2 weeks, then weekly for 4 weeks Maintenance (pernicious anemia, ongoing absorption issues): Monthly injections indefinitely General wellness or dietary deficiency: Once every 1 to 3 months, depending on levels Your provider will check your B12 blood levels and recommend the right schedule for you