Incidence of oral cancer and premalignant disorders of oral cavity are on a rise and a matter of great concern for the Indian population and also worldwide. The increasing consumption of tobacco and smoking are the main causative factors. The effects of these can be reversed to some extend by consumption of antioxidants. This book gives detailed description about antioxidants, its mechanism of action and its role in different premalignant disorders. This book will help educate the readers about the beneficial properties of antioxidants and how it may benefit the healthy and diseased individuals. The readers will most importantly learn about the source of these antioxidants and their daily recommended doses.