Dear Ayn Landers: Our beautiful 40-year-old daughter has become increasingly heavy. She is aware of the problem and would like to do something about it. The conclusion of family members is that food may have become the family entertainment and perhaps even a substitute for compatibility. The obvious detriment to her health and self-image is of concern to all of us. Can you suggest anything we might do to help Trudi accomplish her goal of losing weight and regaining her self-esteem? - Worried Father in Illinois