Hello, whether the skin will sag after losing weight depends on whether you can prevent it in time after losing weight. As long as you prevent it correctly and effectively, the skin will not sag. After losing weight, fat burning leads to weight loss, and subcutaneous fat consumption is too fast, so it becomes more and more relaxed. You can do some physical training, such as push-ups, sit-ups, and eat more trotters, peanuts, pigskin, soy products and other foods, which is very effective in preventing sagging skin.