1. Did you eat more after taking part in fitness than before? Because after a lot of exercise, energy consumption is relatively large, food intake will increase, and if you eat too much, your weight will naturally increase. If you want to lose weight through exercise, besides exercising more, it is also very important to pay attention to the weight of food.

Second, whether the sport is the exercise of bodybuilding muscle project. Because muscle is denser and heavier than fat, if your exercise is mainly to increase muscle, then your original body fat will become muscle after exercise, which will also cause weight gain. If you want to take exercise as a way to lose weight, you'd better choose aerobic exercise such as running and cycling, or ask a professional coach to design a weight loss plan that suits you.