This publication, written by leading international public health professionals, highlights 13 case studies on a variety of topics including control of vitamin A deficiency, folic acid fortification of bread, control of iodine deficiency disorders, and the contribution of research to infant breast-feeding policies, as well as successful community projects to promote increased physical activity and the role of urban planning and public transportation in reducing the prevalence of sedentary lifestyles, among other important topics. Nutrition and an Active Life: From Knowledge to Action will become an important resource on best practices at the national and community levels for professionals working in health promotion, maternal and child health, nutrition, fitness, social marketing, and public health education.