No breakfast or just breakfast. College students generally do not attach importance to breakfast, and a considerable number of college students do not eat breakfast or only eat breakfast. Many studies at home and abroad show that students with poor nutritional quality caused by skipping breakfast or eating breakfast casually will be seriously affected in their thinking, imagination and physical development. 2. Preference for snacks and omnivores. It is common for college students to like snacks and omnivores, especially girls. The energy and nutrition provided by omnivorous foods are not as balanced and comprehensive as those provided by normal foods, and most omnivorous foods are strong in taste, sweet or salty, and high in fat, sugar and salt, which not only affects the normal diet of college students.