The drug type has the standard name of national medicine, which can ensure the effect, but it may have some harm to liver and kidney function. After stopping the drug, it will rebound badly and may be fatter than before.
Health food is not medicine, but food, which can't guarantee the effect and has little harm to human body, but the effect is basically not.
Miao Yixiu should be regarded as a type of health food.
These two ways of losing weight are not good. The real way to lose weight is to find out why you are fat, and then the other way around. For example, if you eat more, you will eat less, and if you exercise less, you will exercise more.