Vitamin C, vitamin D, zinc, selenium, copper, folic acid, vitamin A, vitamin B6, and vitamin B12 contribute to the normal function of the immune system.
Immune cells need to divide and grow rapidly in case of immune system activation. Zinc acts in the cell division process.
Vitamin A acts in the cell specialization process.
The respiratory tract mucosa plays an important role as a barrier against pathogens of all kinds. Vitamin A, vitamin B2, biotin, and niacin contribute to the maintenance of normal mucous membranes.
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