*REDUCE TIREDNESS AND FATIGUE: Vitamin B12 is vital for several important body functions. B12 contributes to the normal function of the Immune System, Red Blood Cell Formation & Reduction of Tiredness and Fatigue. *SUPPORTS RED BLOOD CELL FORMATION: Vitamin B 12 is normally found in meat and fish. A B12 deficiency can produce abnormally large red blood cells that cannot function properly which in term, causes symptoms like tiredness or fatigue. *EASILY ABSORBED & CONVENIENT ALTERNATIVE SOURCE OF HIGH STRENGTH B12: Our 1000mg tablets are highly bioavailable and are a convenient alternative to painful injections or shots.