The weight loss effect of the treadmill is better, because running is an aerobic exercise. Aerobic exercise is the fastest way to lose weight by burning fat. However, many people have misunderstandings. It is impossible to choose exercise to lose weight without any regulations on diet. Because diet control is far better than the feedback of losing weight through exercise, for example, if you eat very high calories, it will take several hours to finish it. Although you can lose weight by running, you should eat a clean diet and try to eat some foods with high protein content and low carbohydrate and fat content.