can a b12 injection cause arm pain Best Vitamin Sites Vitamin B12 Deficiency: A Fact

Additionally, people with certain medical conditions that impair nutrient absorption, like Crohns disease or pernicious anemia, may find these injections particularly helpful

(2016) Randomized, placebo-controlled trial of methyl B12 for children with autism

10.1002/14651858.cd004655.pub3 58 WangS-J.YanC-Z.WenB.ZhaoY-Y

Long-term use should be approached cautiously because some patients report mild side effects like nausea or injection site discomfort, and research on prolonged use is limited. To minimize the risk of adverse reactions, always get the injections from a registered physician

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