Methylcobalamin B12 is involved in the regulation of genes related to brain health
https://www.scribd.com/document/769055748/Top-5-Symptoms-of-Vitamin-B12-Deficiency-You-Shouldn-t-Ignore-164123
Methylcobalamin B12 is involved in the regulation of genes related to brain health, potentially reducing the risk of neurodegenerative diseases like Alzheimer's