Vitamin C is a vital antioxidant nutrient necessary for cellular protection from oxidative damage and maintenance of strong immune functioning. Under stress, the body's water-soluble reserves of Vitamin C are quickly depleted, leading to a weakening of the body's defenses and higher risks of infection. Low levels of Vitamin C can also increase one's vulnerability to stroke and cardiovascular illness. Additionally, Vitamin C contributes to the formation of skin, gums, teeth, and joint cartilage, while aiding the absorption of iron in the body and boosting energy metabolism to reduce exhaustion and fatigue.