Vitamin B12 holds a prominent position among the vitamins, as it plays a central role in fundamental bodily functions. Specifically, it is involved in DNA and myelin synthesis, plays a role in the cell division process, and contributes to the normal formation of red blood cells and the normal functioning of the nervous system.*

Additionally, like all B-complex vitamins, it has important metabolic properties, contributing to the normal metabolism of homocysteine,* as well as to the normal functioning of metabolic processes involved in energy production and to the reduction of tiredness and fatigue.*

Vitamin B12 is found in animal-derived foods, such as red meat. For this reason, vitamin B12 supplementation is common among vegetarians and strict vegans. It is also often recommended for the elderly, in whom B12 deficiency is frequently observed due to polypharmacy, poor diet, and achlorhydria (low stomach acid).