What if the problem with overeating is an automatism or habit? Then we need a replacement behavior of equal or better effect and longer duration than the existing habit.
Is the reason that overeating - obesity is so difficult to successfully treat, a problem of mistaken identity, we are trying to treat the symptom or object when the real issue is the habit. The behavior, learned behavior, and the simple method of treatment is replacement of an undesirable behavior with a better habit.
So what is a suitable habit for replacement?