Vitamina B12, magħrufa wkoll bħala cobalamin, hija l-unika vitamina li fiha elementi tal-metall. Il-vitamina B12 fin-natura hija sintetizzata minn mikro-organiżmi, u annimali u pjanti ogħla ma jistgħux jimmanifatturaw il-vitamina B12. Vitamina B12 hija l-unika vitamina li teħtieġ l-għajnuna ta 'sekrezzjoni intestinali (fattur endoġenu) biex tiġi assorbita. Xi nies m'għandhomx dan il-fattur endoġenu minħabba anormalitajiet gastrointestinali, u se jsofru minn anemija pernuża anki jekk is-sors tad-dieta huwa biżżejjed.
Vitamin B12 can promote the development and maturation of red blood cells, keep the hematopoietic function of the body in a normal state, and prevent pernicious anemia; in the form of coenzyme, it can increase the utilization rate of folic acid and promote the metabolism of carbohydrates, fats and proteins; it has the effect of activating amino acids And promote the biosynthesis of nucleic acid, can promote the synthesis of protein, it plays an important role in the growth and development of infants and young children; eliminate irritability, focus, enhance memory and balance; it is an indispensable vitamin for a healthy nervous system. Formation of a lipoprotein in tissues that maintains nervous system health.
