Vitamin B12, and its most bioavailable form, methyl cobalamine, is a bright red vitamin that contains cobalt. In combination with folate, Vitamin B12 participates in the synthesis of DNA and fatty acids, in the production of energy within the cells and in the functioning of the nervous system.
Vitamin B12 deficiency can produce symptoms such as anemia, tingling in the feet and hands, diarrhoea constipation or weight loss.
People who follow a strict vegan or macrobiotic diet are exposed to these inadequate intakes.
The elderly absorb less vitamin B12 from food because the acidity of the stomach decreases with age.