Almost 1 billion people suffer from undernutrition in developing countries. In this book Professor Svedberg provides a detailed analytical study of undernutrition in Sub-Saharan Africa the worst affected area and provides crucial advice for all those concerned in development worldwide. The book concentrates on the five challenges that undernutrition creates: what undernutrition is who the undernourished are where the undernourished are when people are undernourished and why people are undernourished.