Support your active lifestyle with vitamin B12 to reduce tiredness and fatigue, support energy metabolism and help psychological function. These handy tablets from Swanson Health each contain 5000µg as methylcobalamin, and also support normal functioning of the immune system. Support your active lifestyle with vitamin B12 to reduce tiredness and fatigue, support energy metabolism and help psychological function. These handy tablets from Swanson Health each contain 5000µg as methylcobalamin, and also support normal functioning of the immune system. Complements a well-balanced diet. 5000µg of Vitamin B12 per tablet. Reduces fatigue, supports energy metabolism and aids psychological function. Suitable for vegetarians. 60 tablets per pack Let vitamin B12 help your body combat fatigue! This vitamin is known to aid in the reduction of tiredness and fatigue. Get yours now!