why vitamin b12 injections versus oral supplemnets vs. Supplements: Which is Better? B12 Injection vs. Oral Supplements:
Description
A 2009 rat study by Sever et al

Eases specific discomfort in hands, feet, arms, and legs

Needles dull fast, hurt more, and increase contamination risk

Genetic disorder can also alter the structure and production of specific enzymes which changes B 12 in coenzyme
