Vitamin B12 has the most complicated structure of all vitamins. Since vitamin B12 contains cobalt it is also known as cobalamin. The vitamin can only be synthesized by bacteria and so it can be found mostly in dairy products, but also in eggs and some meat. As vegans avoid such foods vegan foods are frequently supplemented with vitamin B12. This vitamin is essential in the human body for the development and growth of children, synthesis of red blood cell. Vitamin B12 is also vital for maintaining the human nervous system. Vitamin B12 is also vital for fast synthesis of DNA in cell division.

Foods rich in vitamin B12 include:

• Yogurt

• Milk

• Chicken

• Haddock

• Liver

• Trout

• Beef

• Pork

• Tina

• Salmon