The human body functions like a complex clockwork. For every organ and tissue of your body to work perfectly, it needs above all the right amount of high-quality vitamins. Vitamin B12 is the only vitamin that is water-soluble and yet can be stored simultaneously for several years. A deficiency is therefore often only noticed after years, when the vitamin B12 level is very low. It has essential effects on the entire neural network in the brain and thus ensures optimal thinking function.