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International Journal of Basic and Applied Medical Sciences
Vitamin B12 is an essential cofactor that is integral to methylation processes important in reactions related to DNA and cell metabolism. It is an essential nutrient needed for proper nervous system function and for the metabolism of carbohydrate, protein, and fat. Deficiencies in B12 can lead to inefficient erythropoiesis and megaloblastic anemia. Causes of B12 deficiency include malnutrition, lack of intrinsic factor (IF) and/or malabsorption of protein-bound vitamin B12, generalfatcat:edmvjpba25cv3coph6cf4fpqwe