Contributes to:

• normal acid-base metabolism
• normal carbohydrate metabolism
• normal cognitive function
• normal DNA synthesis
• normal fertility and reproduction
• normal macronutrient metabolism
• normal metabolism of fatty acids
• normal metabolism of vitamin A
• normal protein synthesis
• the maintenance of normal bones
• the maintenance of normal hair
• the maintenance of normal nails
• the maintenance of normal skin
• the maintenance of normal testosterone levels in the blood
• the maintenance of normal vision
• the normal function of the immune system
• the protection of cells from oxidative stress

Has a role in the process of cell division.

Contributes to:

• normal red blood cell formation
• normal functioning of the nervous system
• the reduction of tiredness and fatigue
• normal cysteine synthesis
• normal energy-yielding metabolism
• normal homocysteine metabolism
• normal protein and glycogen metabolism
• normal psychological function
• the normal function of the immune system
• the regulation of hormonal activity

Contributes to:

• normal energy-yielding metabolism
• normal synthesis and metabolism of steroid hormones, vitamin D and some neurotransmitters
• the reduction of tiredness and fatigue
• normal mental performance

Contributes to:

• normal energy-yielding metabolism
• normal functioning of the nervous system
• normal psychological function
• the normal function of the heart

Contributes to:

• normal energy-yielding metabolism
• normal functioning of the nervous system
• normal psychological function
• the maintenance of normal mucous membranes
• the maintenance of normal skin
• the reduction of tiredness and fatigue

Contributes to:

• normal energy-yielding metabolism
• normal functioning of the nervous system
• normal homocysteine metabolism
• normal psychological function
• normal red blood cell formation
• the normal function of the immune system
• the reduction of tiredness and fatigue

Has a role in the process of cell division.