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b12 injections versus pills The Advantages of Oral Supplements: Shawn Veiseh, M.D.: Family Medicine B12 Injections or Oral B12:
Description
That's what can happen with pill supplements

They include implications in the regulation of longevity, obesity, diabetes, and physical performance

Spreading redness, fever, lasting numbness or weakness are not normal and need medical attention

While these injections are generally safe with minimal side effects, you may experience mild soreness or redness at the injection site
