This book is an unique compilation of twenty- five chapter, which have been contributed by internationally acknowledged experts who have made significant contributions to food and nutritional security. The first part addresses food and nutritional security and the second part focus on food processing and technology. This book is based on the syllabus of Ph.D courses of Indian Agricultural Universities in the subject of Food and Nutrition. This book is highly useful for undergraduate and post-graduate students, teachers, research scholars, academicians and scientists in the area of home science ( community science), food nutrition, food processing, food science, food technology and agricultural biotechnology.