Many participate in sports or some other extracurricular activity that keeps their energy levels up while in high school and don't continue when they get to college. It's not a difficult equation to figure out. The combination of taking in more calories while burning less of them equals weight gain. Some students find it difficult to maintain a high activity level because of their new responsibilities. If you're serious about attaining or maintaining a realistic weight, then you must be committed to your goal.
Proper planning makes the commitment a lot easier.
Students who successfully manage their weight have learned how to set realistic expectations and limits on themselves. Managing your weight involves planning meals and exercising regularly, as well as anticipating high-stress situations that may trigger overeating, such as a full class load, eating in the cafeteria, loneliness and boredom. If you notice that you overeat in the cafeteria, plan to serve yourself modest portions of four items and don't go back for seconds. Choose foods wisely and stay active. The first step in changing old habits is becoming conscious of them.