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While our bodies need vitamin B12 for all of the above reasons, it is estimated that approximately 15% of people are deficient in B12

Going on 6 weeks Hi I got the first Pfizer shot in February a few days later my lymph node was swollen and painful, after a week the pain decreased but l still have some pain, a few days after that my arm muscle started twitching the next day toes and leg muscles twitching and cramping leaving my calf muscles in a lot of pain

Metabolic processes it works alongside other B vitamins to convert food into usable cellular energy

[DOI] [PubMed] [Google Scholar] 29.Chang C.H., Tsai W.C., Lin M.S., Hsu Y.H., Pang J.H

May delay oral drug absorption