One of the most crucial of the family of B Vitamins B12 plays an important role in our nervous system and the production of red blood cells. It also aids digestion brain functions and helps prevent anaemia and has been linked to enhancing energy levels and moods. The human body requires vitamin B12 to make red blood cells nerves DNA and carry out other functions and it is recommended that the average adult get 2.4 micrograms a day. However our bodies are not able to independently synthesise this and we rely on foods rich in vitamin B 12. Dr Deepak