I think the best way is to exercise more, and it is best not to use negative methods such as diet and drugs. Sports that can reduce waistline are:

1. Sit-ups, this method is more convenient and does not require high environment, but it needs the persistence of athletes;

2. Running and going to school for a while every day;

3. Dance aerobics, you can go to the video store to buy some teaching butterflies;

The most important thing is to rely on your own efforts. Secondly, to tell the truth, personally, I think the 2' 3 waist is not fat at all, but just right. I suggest you keep such a figure.