Can a lack of vitamin B12 be the reason you're so tired and stressed? Can such an easily-obtainable nutrient really prevent memory loss, alzheimer, heart disease and even infertility? And what if you were told that a deficiency can literally shrink your brain, cause irreversible damage and even stunt the development of your lovely child?

Those are no longer theories, but hard facts backed by solid scientific research. B12 deficiency is one of the most underrated and destructive illnesses in the western world....