Is acupuncture weight loss healthy?

I really tried acupuncture weight loss last year. I didn't feel anything unhealthy, but I really lost weight and didn't need to exercise. Instead, I rebounded. Many friends around me are like this. At that time, everyone could lose weight, but there was a great chance of rebounding. This is the best way to lose weight and exercise slowly. This is my experience of losing weight for many years and finally returning to the starting point. Now I've really lost 20 or two months.