Vitamin C, thiamine (B1), riboflavin (B2), niacin (B3), B6, B12, pantothenic acid, biotine, calcium, phosphorus and iron contribute to normal energy-yielding metabolism and they contribute to the reduction of tiredness and fatigue.
Vitamin D, calcium, phosphorus and zinc contribute to the maintenance of normal bones.
Vitamin C increases iron absorption.
Vitamins C, B6, B12, D, folate, zinc and iron contribute to the normal function of the immune system.