Living or working in a polluted environment, everyday stress, poor diet and smoking, increases the body’s exposure to free radicals. Free radicals are reactive substances that, when present in excess, can damage body cells. To help maintain optimal health, support the body in its efforts to manage damaging substances with a daily intake of antioxidant nutrients. Protective antioxidant and detoxification nutrients such as selenium, zinc and vitamins C and E, and plant substances like carotenoids, are used by the body to help protect cells.