No, your stomach cannot shrink if you eat less! Once you are an adult, the size of your stomach remains pretty much the same unless you take recourse to surgery to make it smaller. Moreover the stomach size in thin, medium or overweight individuals is nearly the same. However, if you eat enormous amounts, it can expand to accommodate your intake, but then it has to return to the normal size. If you diet for several days, your appetite may drop but not because your stomach has become smaller.
A guide to frugal beauty and health.