There are 8 training courses for nutritionists, including basic nutrition, food nutrition and food hygiene, population nutrition, public nutrition, nutrition deficiency and overnutrition, disease nutrition, nutrition strengthening and health food, food processing and cooking. This textbook is compiled and approved by dozens of experts in related fields all over the country, which is scientific. Considering the actual needs of China's nutrition work, this textbook has added articles such as "Nutrition Strengthening and Health Food" and "Food Processing and Cooking", which are richer, more comprehensive and more practical than the general nutrition and food hygiene textbooks.