"We need vitamin B12 for several vital body functions. It is involved in the metabolism of every cell in the body. The vitamin B12 combines with the folate in the formation of DNA, the genetic material in all cells. It is not only needed for the synthesis and regulation of the fatty acids, its needed for energy production also.
B12 helps in maintaining the health of the nerve cell and the nervous system. The vitamin B12 is also needed for the synthesis of the red blood cells. It has been found to be very much needed for the growth and development of children."