In my experience, it is effective. According to the instructions on the product, the calorie intake can be accurately controlled. Coupled with a scientific and healthy diet and proper exercise, it is still possible to lose 10-20 kg a month.

But we still need to have a clear understanding that obesity is directly related to genes, and some people just don't get fat easily. Some people lose weight by losing weight, but they will rebound if they don't pay attention to diet and exercise. This is normal, don't feel inferior and don't give up.