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Vitamin B 12, also known as cobalamin, is a water-soluble vitamin involved in metabolism. [2] It is one of eight B vitamins.It is required by animals, which use it as a cofactor in DNA synthesis, and in both fatty acid and amino acid metabolism. [3]
Serum vitamin B 12 is a medical laboratory test that measure vitamin B 12 only in the blood binding to both transcobalamins. [1] Most of the time, 80–94% of vitamin B 12 in the blood binds to haptocorrin, while only 6–20% is binds to transcobalamin ll. [2] Only transcobalamin ll is "active" and can be used by the body. [1]
Hydroxocobalamin, or another form of vitamin B 12, are required for the body to make DNA. [7] Hydroxocobalamin was first isolated in 1949. [9] It is on the World Health Organization's List of Essential Medicines. [10] Hydroxocobalamin is available as a generic medication. [2] Commercially it is made using one of a number of types of bacteria. [11]
“Vitamin B12 is an essential water-soluble vitamin that plays a critical role in helping the brain and nervous system function,” says Ashley Kitchens, RDN, of Plant Centered Nutrition. “It ...
Another study of over 600 young adults and children looked at the link between vitamin B12 levels and body mass index (BMI), with lower B12 levels resulting in higher body weight.
“Vitamin B12 is necessary for normal processing of carbs, proteins, and fats in the body and for the normal formation of red blood cells,” adds Elizabeth Somer, M.S., R.D.N., a dietitian based ...
Vitamin B 12 cannot be produced by the human body, and must be obtained from the diet. [2] The body normally gets enough vitamin B 12 from the consumption of foods from animal sources. [2] Inadequate dietary intake of animal products such as eggs, meat, milk, fish, fowl (and some type of edible algae) can result in a deficiency state. [134]
Adenosylcobalamin (AdoCbl), also known as coenzyme B 12, cobamamide, and dibencozide, is one of the biologically active forms of vitamin B 12. [1] Schematic diagram of the propionate metabolic pathway.