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Vitamin B12 deficiency is most common in people who have a disease or condition in which the body is unable to absorb vitamin B12 from ingested foods
Vitamin B12 and chronic kidney disease
IGF-1 LR3 (Insulin-like Growth Factor-1 Long R3) is a synthetic analog of IGF-1 , a hormone that plays a key role in muscle growth, tissue repair, and cellular regeneration
Finally, vitamin B12 is crucial for the biochemistry of the nervous system, participating in DNA synthesis, methionine synthesis, methylation reactions, myelin synthesis, and neurotransmitter production (, , , , , , )
Dietary modification alone is insufficient for treating established deficiency but plays a supportive role in prevention
