3. Brain Health
Getting in sufficient Vitamin B12 every day helps to keep your brain healthy and young. According to some researchers, the single most important thing you can do to keep your brain healthy and fully functional, is to keep your homocysteine levels in check. A number of studies, both in the USA and Britain have linked high homcysteine levels to premature brain deterioration. Lowering homocysteine levels helps to prevent mental decline, assisting in maintaining cognitive functioning and memory. So if you want to keep all your marbles in old age, be sure you get an adequate supply of Vitamin B12 daily.