This book presents the thoroughly revised and updated text which has been written in a simple and lucid language with the major goal to serve as a primary textbook to those studying basic courses in nutrition as also the students of BSc (nursing). Besides, it will also prove useful to the students of home science, food science and food technology, etc. to describe and illustrate general aspects of nutrition that forms a part of their course curriculum. All the chapters have been thoroughly presented with the text focusing on the needs of the students. The study material in each chapter has been supplemented with appropriate tables, flowcharts and figures. Important questions have also been included at the end of each chapter. Definitions of various terms related to nutrition have also been described at the end of the text. Various dietary recommendations have been revised as per ICMR-NIN (2020) Guidelines.