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B12 is a vitamin that plays a crucial role in cognitive and nervous system functions
6 You May Need More Than One Shot If youre suffering from a severe deficiency or severe symptoms, you may need to get five to seven shots during the first week of treatment to restore the bodys reserves
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B12 vitamin shots may cause pain at the injection site, mild diarrhea, and swelling
Subsequent elevations in NAD+ levels activate sirtuin 1 (SIRT1), a cellular regulatory enzyme dependent on NAD+ availability
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