Cobalamin, also known as vitamin B12, is a water-soluble vitamin essential for various bodily functions. It plays a crucial role in the formation of red blood cells, DNA synthesis, and maintaining the health of nerve cells. Cobalamin is primarily found in animal products such as meat, fish, eggs, and dairy, making it important for those following a vegetarian or vegan diet to consider supplementation. Deficiency in cobalamin can lead to serious health issues, including anemia and neurological problems. The body requires intrinsic factor, a protein produced in the stomach, to absorb cobalamin effectively from food. Regular intake of this vitamin is vital for overall health and well-being.