1, food nutrition: food nutrition is a discipline that studies the relationship between food, nutrition and human growth, development and health, as well as measures to improve the nutritional value of food;
2. Food safety science: Food safety science outlines scientific issues related to food safety. The effects of environmental pollution on food safety, biological pollution on food safety, safety of chemical application, safety of natural toxic substances in animals and plants, safety of packaging materials and containers, safety of non-thermal sterilized food, safety of genetically modified food and food safety management system were introduced.
3. food hygiene: food hygiene is the study of possible foods.