What is Vitamin B12

Vitamin B12 (B-12) term can be defined in two ways. Formally Vitamin B12 is collection of calamines - cobalt and corrin ring molecules.
In the narrow sense Vitamin B12 means Cyanocobalamin - one of calamines.

Vitamin B12 plays role in following processes:

• brain functioning
• nervous system functioning
• formation of blood

It was isolated from liver by Karl A. Folkers in 1948. Vitamin B-12 was first synthesised by Robert Burns Woodward in 1973.