How to lose weight quickly without affecting health?

Reasonable diet and exercise. First of all, you should reasonably arrange your three meals a day, eat more fruits and vegetables, eat well in the morning, eat well at noon, eat less at night, drink a cup of warm water or honey water in the morning, and eat meat at noon or morning. As for sports, you can go out running, skipping rope, doing sit-ups, dancing and so on in the morning and evening. There will be no good effect in the short term, and only long-term persistence can see the effect.