This has no weight loss effect. It is a kind of food, just like the jelly bought in the supermarket. It doesn't work, just to satisfy the craving. If there is a different feeling, it may be something added. For example, diarrhea may be added with laxatives.
It is best to check the production license before use. If it is food, then promoting the health care function or the role of drugs is false propaganda.
If there is no license, there is no product, let alone eating it.