Losing weight must be scientific, and don't harm your health.
The so-called weight loss is to lose excess body fat.
To lose body fat, you need to know how fat is transformed.
Under the action of enzymes, fat+oxygen can be converted into carbon dioxide and water, as well as the energy ATP needed by human body.
Reduce fat scientifically.
Next, you can change, watch popular science every day, and choose the way to lose weight that suits you.