Any of several water-soluble pyridine derivatives, including pyridoxine, pyridoxal, pyridoxamine, and their phosphate esters, found in fish, poultry, potatoes, legumes, whole grains, and enriched foods, and serving as coenzymes in many biochemical processes, especially amino acid synthesis and the formation of neurotransmitters.
A water-soluble, cobalt-containing compound that occurs in several forms, is important for nerve cell function, red blood cell formation, and DNA synthesis, and is found in meat, poultry, fish, eggs, dairy products, and fortified foods. Deficiency can result in pernicious anemia. Also called cobalamin . Also called cyanocobalamin .