b12 injection dosage and frequency Vitamin Injections b12 injection dose frequency B12

Vitamin B12 is essential for nerve function, red blood cell production, and DNA synthesis

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If dietary sources are insufficient, however, a doctor may recommend supplementation through pills or injections, depending on the cause of the deficiency.

Most of the side effects of B12 injections are mild, including diarrhea or redness or temporary swelling at the injection site