can a b12 injection make you tired Why Do I Feel Worse After My Injection? Causes & Management – Bolt Pharmacy Is it normal to feel

B12, along with B6 and folate, help metabolize homocysteine levels

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While vitamin B12 naturally occurs in the body, making allergic reactions to it exceedingly rare, certain additives or preservatives in some preparations could cause mild localized reactions, such as redness or itching

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Gastrointestinal issues: If youve been diagnosed with gastrointestinal disorders such as celiac disease or Crohns disease, or youve undergone gastrointestinal surgery, you may require B12 injections