Methylcobalamin B12 supports a healthy mood by participating in the production of neurotransmitters involved in feelings

https://www.scribd.com/document/768412945/The-Role-of-Vitamin-B12-in-Maintaining-a-Strong-Immune-System-159632

Methylcobalamin B12 supports a healthy mood by participating in the production of neurotransmitters involved in feelings of happiness and well-being