Book excerpt: This book explores in depth the relationships between nutrition and oral health. Oral health is an integral part of general health across the life course, and this book examines nutritional and oral health considerations from childhood through to old age, with particular attention focused on the consequences of demographic changes. Current knowledge on the consequences of poor diet for the development and integrity of the oral cavity, tooth loss, and the progression of oral diseases is thoroughly reviewed. Likewise, the importance of maintenance of a disease-free and functional dentition for nutritional well-being at all stages of life is explained. Evidence regarding the impact of oral rehabilitation on nutritional status is evaluated, and strategies for changing dietary behaviour in order to promote oral health are described. Nutrition and Oral Health will be an ideal source of information for all who are seeking a clearly written update on the subject.