This fact sheet describes what is known about the efficacy and safety of many of the common ingredients in dietary supplements for weight loss. Those who sell these supplements could say that the products help to lose weight because they block the absorption of fats or carbohydrates, reduce appetite or speed up the metabolism. However, there is little scientific evidence that slimming supplements work. Many supplements are expensive, some may interfere with medications lose weight naturally, and others may cause harm.
If you are thinking about taking a dietary supplement to lose weight, consult a health professional. Especially if you have high blood pressure, diabetes, heart disease or other medical problems.