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

http://israelqrei366.theglensecret.com/vitamin-b12-the-key-nutrient-for-a-healthy-gut-microbiome

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