LIFENOW Vitamin B12 ALA Supplement, 60 tabletsA vitamin B12 deficiency is thought to be one of the major nutrient deficiencies in the world, with a 2004 study showing that its a major health concern in many parts of the world. As with all B vitamins, vitamin B12 is a water soluble vitamin. This means it diffuses in water and passes through the bloodstream. The human body will not store the excess, and hence the unwanted amount of this vitamin is eliminated through urine. Lifenow Vitamin B12 ALA