Vitamin B12 is needed by our body for the formation of healthy red blood cells, maintenance of the nervous system and efficient metabolism of fats, carbohydrates and proteins. It also helps maintain healthy growth and appetite in children. A daily B12 supplementation is often recommended for vegans and vegetarians as Vitamin B12 is mainly found in meat products. These methycobal tablets may also help in reducing the symptoms of pernicious anaemia and help those with a hereditary heart condition. Mental confusion, tiredness, pale skin and recurrent mouth ulcers may be signs of a B12 deficiency.