Book excerpt: The book, Food, Nutrition and Hygiene has been written in accordance with the latest syllabus prescribed for different universities that have adopted the common unified syllabus under the National Education Policy, 2020. The most important thing that the Covid-19 pandemic taught us is that health is the real wealth. The pandemic was crucial in making us understand the importance of having good health. When everything else fails, we only have our health to depend on. Having the basic knowledge of food and nutrition is absolutely essential in today’s world. Studying a food science and nutrition course will provide students with an understanding of trends and how to distinguish fact from fiction as we become more health-conscious. After studying this subject, the student would be able to fully understand the concept of Food and Nutrition. He or she would gain awareness regarding the common health issues in the society and will have clarity on the special requirements of food during an illness.