This book introduces students who have just begun their education in Nutrition and Dietetics to the importance and fundamentals of the "Principles of Nutrition Laboratory Practices" course, which forms the foundation, the very alphabet, of the field, and explains the practical, hands-on side of the profession. By bringing together in a single book the information that will benefit all students, and by enabling this knowledge to be applied throughout their professional lives, it aims to contribute to public health and the national economy.