Quest Once A Day Immune C 30S is a full spectrum high potency vegetarian multivitamin and mineral formula containing ideal levels of iron and zinc and plant source antioxidants.

• Vitamin C is an antioxidant nutrient that contributes to the protection of cells from oxidative stress and to the normal functioning of the immune system.
• As a water soluble nutrient vitamin C supplies in the body are used up quicker under stress leading to a lowering of immune function and increased incidence of infections