Vitamin B-12 - Mayo Clinic Vitamin B-12 is a vitamin the body uses to make and support healthy nerve cells It's also used to make healthy red blood cells and the genetic material inside cells called DNA Vitamin B-12 also is called cobalamin Food sources of vitamin B-12 include poultry, meat, fish and dairy products
Vitamin B12 - Wikipedia Vitamin B12, also known as cobalamin or extrinsic factor, is a water-soluble vitamin involved in metabolism [2] One of eight B vitamins, it serves as a vital cofactor in DNA synthesis and both fatty acid and amino acid metabolism [3]