General synthetic diet pills should not be used as much as possible, which will destroy the body function. I suggest you drink some onion juice or mulberry cream, exercise step by step, and try not to hurt your knees; Never have enough to eat; Insist on not eating one day a week, eat some fruits and drink water, eat more vegetables and fruits at ordinary times, and drink water or some corn paste when you are hungry. If you persist for a period of time, you will feel the effect and your physical fitness will be enhanced.