The university wants to lose weight, eat less lunch while ensuring basic exercise, and use fruit fishing instead of dinner?
Yes, but the food you eat should ensure the nutrition of your body. If basic nutrition can't keep up, your body will protest. If you eat fruit at night, you can choose to eat pitaya, which tastes good. If you insist on basic exercise every day, you won't lose much weight. You can add walking and jogging every day, which will be better.