They usually contain a diuretic. A diuretic increases the amount of water lost from the body. Since the body is made up of 80% water, the person will see some weight loss. Once the person stops taking the supplement the weight will be regained quickly.
•Principles of first aid•
•Call for help
•Calmly take charge
•Check the scene and the casualty
•Carefully apply FIRST AID.
Hope this helps! Have a great day and good luck! ;)
Either tell her parents or offer support by suggesting specific ways to help her stop using. You should never enable them.