Metabolism: B12 is a cofactor in processing fats and proteins
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You may find that mild redness is normal in the first few days, but it shouldnt get worse - and it should go away on its own
Mild temporary soreness at the injection site is possible
Clinically informed by Sabeen Munib, MD|Last updated: August 2026 Things To Know Tienes preguntas
Experts say supporting gut and heart health, preserving muscle, and protecting bone are essential for long-term success