Vitamins C and E are dietary antioxidants that contribute to antioxidant defense systems in humans. These are also proven to help us protect from certain age-related degenerative diseases. Vitamin E may also be useful in the treatment of heart disease, while Vitamin C also very effectively scavenges a wide array of ROS and free radicals. Therefore, adequate intake of vitamin C can lower the risk of cancer, heart disease, and cataract.