Which one of the following vitamins contains cobalt?

Vitamin B12, also known as Cobalamin, is the only vitamin in the human body that contains the trace mineral cobalt in its chemical structure. In fact, the name "Cobalamin" itself comes from cobalt, clearly indicating its presence at the core of this vitamin's molecular structure. Every student must remember that Vitamin B12 is essential for the formation of red blood cells, proper functioning of the nervous system, and synthesis of DNA inside the body. Since plants cannot produce Vitamin B12, it is mainly obtained from animal-based food sources, making vegetarians and vegans more prone to its deficiency.

• Cobalt Presence: A single cobalt atom sits at the centre of the Vitamin B12 molecule, surrounded by a complex ring structure
• Red Blood Cell Formation: Plays a crucial role in the production of healthy red blood cells in bone marrow
• Nervous System: Maintains the myelin sheath around nerves, essential for proper nerve function and signal transmission
• Sources: Found abundantly in meat, fish, eggs, milk, and dairy products, but completely absent in plant foods
• Deficiency Effects: Lack of Vitamin B12 causes pernicious anaemia, fatigue, weakness, and nerve damage over time