Vitamin B12, an indispensable water-soluble vitamin, plays a crucial role in the production of red blood cells, DNA synthesis and neurological
functions. It is predominantly found in animal-based foods such as meat, fish, milk, dairy products and eggs. Plant foods typically do not contain
substantial amount of vitamin B12.1 Vitamin B12 is essential for three enzymatic processes: the conversion of homocysteine to methionine; the conversion of
methylmalonic acid to succinyl coenzyme A; and the conversion of 5-methyltetrahydrofolate to tetrahydrofolate, a process necessary for DNA synthesis and red blood cell production.
