Vitamin B12 - An important micronutrient for energy and nerves Vitamin B12 is a water-soluble vitamin also known as cobalamin. It influences numerous processes in the human body and plays a role in energy metabolism, the nervous system and affects the psyche. Vitamin B12 also reduces tiredness and fatigue and supports the normal functions of the immune system. Vitamin B12 also contributes to normal homocysteine metabolism and, together with folic acid, can convert homocysteine into the essential amino acid L-methionine. However, since it is only found in animal foods in appreciable quantities, strict vegetarians and vegans in particular must ensure a sufficiently high supply of this important vitamin. Biogena Vitamin B12 1000 Superior with all naturally occurring cobalamins is an optimal solution for targeted vitamin B12 supply - day after day, simple and vegan. Highly dosed vitamin B12 from 3 sources (MHA formula) Biogena Vitamin B12 1000 Superior contains the three naturally occurring vitamin B12 compounds in the body in a perfectly balanced ratio: methylcobalamin (M), hydroxocobalamin (H) and adenosylcobalamin (A). Methylcobalamin and adenosylcobalamin are the forms of vitamin B12 that are active as coenzymes. Hydroxocobalamin is a precursor of the two coenzyme forms and is the natural depot form of the vitamin. The recommended daily dose of 1 capsule per day provides a total of 1000 µg of vitamin B12.