The book "Principles of Food Science & Human Nutrition : Teaching Manual" comprises of 17 chapters and equal emphasis for discussion on various aspects is being given for all chapters. The book has been written and designed as per the syllabi of under graduate studies such as B.Sc. (Ag.), B.Sc. (Home Science), B.Sc. (Human Nutrition) etc. of different Agricultural Universities of India and also of the interest who are engaged in the studies of Food Science and Human Nutrition. Language of the book is simple, presentation is lucid and unambiguous for easy understanding of the subject matter. This book is very useful for students, teachers as well as researchers. This book is also a valuable reference source for anyone interested in knowing more about Food and Nutrition.