Methylcobalamin B12 is involved in the production of acetylcholine, a neurotransmitter essential for memory, learning

https://www.scribd.com/document/766912804/The-Role-of-Vitamin-B12-in-Maintaining-Optimal-Bone-Health-193818

Methylcobalamin B12 is involved in the production of acetylcholine, a neurotransmitter essential for memory, learning, and muscle function