• Vitamin B3 (niacin) contributes to normal psychological function, normal energy-yielding metabolism, normal functioning of the nervous system, the maintenance of normal mucous membranes, the maintenance of normal skin and the reduction of tiredness and fatigue. Click here and here for EFSA scientific opinions.
• Vitamin B5 (pantothenic acid) contributes to normal energy-yielding metabolism, normal mental performance, normal synthesis and metabolism of steroid hormones, vitamin D and some neurotransmitters, and reduced tiredness and fatigue. Click here and here for EFSA scientific opinions.
• Vitamin B6 (pyridoxine) contributes to the immune system's normal function, hormonal activity regulation, normal cysteine synthesis, normal energy-yielding metabolism, normal homocysteine metabolism, normal protein and glycogen metabolism and the reduction of tiredness and fatigue. Click here and here for EFSA scientific opinions.
• Vitamin B12 (cyanocobalamin) contributes to normal energy-yielding metabolism, normal functioning of the nervous system, normal homocysteine metabolism, normal psychological function, normal red blood cell formation, normal function of the immune system, the reduction of tiredness and fatigue and it has a role in the process of cell division. Click here, here and here for EFSA scientific opinions.