Absolutely, but remember that you can't just look at weight gain or loss. Aerobic training lasting for a month will burn a lot of fat, but it will also help you gain muscle, so you can't just look at the body mass index. Try to keep three meals a day normal during training, but remember to eat less foods with high fat content, and it is best to eat more fruits with meals. On the other hand, it is very important to keep exercising and lose fat. A month is too short. There is no need to train for two hours a day later. If you arrange it for two hours three times a week, you can ensure the sustained effect of reducing fat, and at the same time your body will not be overtired. Intermittent can make your body recover to a certain extent. I wish you a happy fitness!