2, diet, in fact, I do not recommend dieting. Many people eat until they are half full or even don't eat when they lose weight. Personally, I think this is wrong. Because aerobic exercise consumes a lot of energy, a little carelessness will backfire. When you lose weight, especially at dinner, you should avoid being greasy, eat more vegetables and whole grains, and eat less "hot" staple foods such as rice and white flour.
3, or lose weight. When you lose weight, as long as the waist circumference can be thinner, it means that you have lost more than half of your weight this time. Personally, I still recommend the oldest way to lose weight around the waist-sit-ups.
However, it is not done casually. The best way is to rest for a minute after aerobic exercise. Can be divided into multiple groups, each group should not be too many times. Generally, there are 20 in each group and 3 groups. Take a break for one minute between each group. You can also adjust yourself according to your physical condition.
Misunderstanding, whether you are a boy or a girl, don't think that the weight lifting equipment in the gym can lose weight. This is a misunderstanding of many people. You should know that fitness equipment is to exercise muscles.
Finally, all healthy weight loss requires hard work and perseverance. In my way, I believe it is no problem to lose weight 15kg in the first month. I wish you good health.