Food is one of the basic needs of the human being. It is required for the normal functioning of the body parts and for healthy growth. The present book entitled "Textbook on Food Science and Human Nutrition for undergraduates" is divided into three parts Unit-I: Introduction to Food and Nutrition, Unit-II: Nutrients, and Unit-III: Deals with Effect of Cooking on Food, Nutritional Improvement of Food and Labelling. This book covers the subject of Basic and Applied Nutrition in Food Technology, Food Science and Technology, Food and Nutrition. In this book special emphasis is given to food constituents, nutrients and labelling . The book contains the FSSAI guidelines on labelling. This book can serve as textbook for undergraduates and as a valuable reference source for teachers. This book can also be used by postgraduates and students doing paramedical courses like nursing.