1. Diet problem: If you consume more calories than you do when you jog, you may not lose weight. Please make sure that your diet is healthy, including eating enough protein, vegetables and fruits, and avoiding foods high in sugar and fat.
2. Insufficient exercise: If you only jog once or twice a week and exercise for a short time, you may not see obvious weight loss effect. It is recommended that you jog at least three times a week and gradually increase the exercise time and intensity.
3. Muscle growth: Jogging helps to shape the body, but it may also lead to muscle growth. If your body composition is good, but you haven't lost weight, it may be because your muscles have grown that you haven't lost weight.
4. Metabolic problems: Some people have slow metabolism, and even if they do a lot of exercise, it is difficult to lose weight. If you have tried the above suggestions but you still haven't lost weight, you may need to consult your doctor to learn more about your metabolism.
In short, if you want to lose weight, you need to comprehensively consider many aspects such as diet and exercise, and you need patience and persistence. If you have doubts about your weight loss effect, you can consult a doctor or dietitian and other professionals.