b12 injection sites on body How to Use These 4 IM Spots Safely Injecting B12 into fat: 4

Greendale GA, Sternfeld B, Huang M, Han W, Karvonen-Gutierrez C, Ruppert K, et al

Vitamin B 12 and homocysteine metabolism The figure shows the biochemical pathway of B-vitamin and homocysteine metabolism, highlighting the vitamin B 12 -dependent reaction catalyzed by methionine synthase

This Injection includes two forms of B12

L., Thgersen, H., Madsen, K., Ankersen, M., & Andersen, P

However, serum B12 is a crude measure and can be normal even in the presence of functional deficiency

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