Once A Day Immune Multi is a comprehensive formula designed to support the immune system. It provides fat and water soluble vitamins, amino acid chelated minerals, and mixed carotenoids for their antioxidant benefits. The antioxidant nutrients provided in this formula contribute to the protection of cells from oxidative stress and to the normal functioning of the immune system. Low dietary levels of the nutrients provided in Once A Day Immune Multi is also associated with lower functioning of the immune system and increased rates of infections.