Also, B12 vitamin contributes to the normal function of the immune and nervous systems and the reduction of tiredness and fatigue (EFSA).
Vitamin B12 - 450 Tablets - Immune system & Metabolism - Tiredness & fatigue
Vitamin B12 - 400 Tablets - Immune system - reduces tiredness & fatigue - Vegan
Vitamin B12 - 450 Tablets - Immune system, tiredness & fatigue - 1+ year supply
Vitamin B12 1000mcg - 450 Tablets - Immune Support & Reduces Tiredness, Fatigue