What is Vitamin B12Vitamin B12 plays a vital role in many biological processes within the human body Its important in the production of red blood cells and essential for cell replicationnbspIt also assists in helping our body convert food to energy nbspB12 is also acknowledged for its benefits to the nervous system and the immune systemVitamin B12 is a water soluble vitamin meaning that the body cannot store it and it therefore needs to be consumed regularlyBeing deficient in vitamin B12 can causenbsptiredness and fatigue muscle weakness memory and mood problemsWhy take a Vitamin B12 supplementIf you feel that you are not getting enough of this very important nutrient then a supplement provides a quick and easy way to boost levelsVegetarians and vegans may particularly benefit from supplementing with Vitamin B12 as the main food sources arenbspmeat fish dairy products and eggsOlder people may also benefit more so by supplementing due to the fact that the bodys ability to absorb Vitamin B12 declines as we age Vitamin B12 when combined with Folic Acid may help maintain the heart as together they are thought to help process levels of an amino acid called homocysteine Formulated for a direct route to the bloodstreamJust Vitamins Vitamin B12 complex tablet has been developed to allow sublingual administration to be placed under the tongue and left to dissolve if preferred The tablet is blackcurrant flavoured so tastes great too You can of course chew or swallow whole if you prefer although sublingual administration is thought to offer the best and a more direct and undisturbednbsproute to the blood-stream