I don't know how you dropped from 170 to 140, but I don't advocate using diet pills. I think the best way to lose weight is exercise. Drink some water before meals every day, don't be too full, just be eight points full. Eat less high-fat and high-calorie foods, eat more fruits and vegetables, and do more exercise after meals. Take a walk (quickly) when you have time. Don't eat too much at night A brisk walk is very effective (I think) My height is 163. After giving birth, I reached 130. Now my weight has been kept at 95 Jin. It should be considered normal weight. I hope it's helpful for your reference only.