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Rapid injection can cause discomfort and may contribute to localized reactions

Advertisement Article continues below this ad Swelling A possible reaction to a cyanocobalamin injection is swelling

Low B12 causes fatigue, so correcting it gives deficient people more energy to stay active

Updated October 6, 2020.

Sarcopenia & Muscle Physiology: Research explores its potential to rejuvenate aged muscle stem cells (satellite cells) and improve contractile function in tissue models
