Professor Leigh E Rich gives an excellent introduction to how psychologists are able to help people re-define their relationship with food on healthier terms. In particular Dr Kristeller and Dr Quillian-Wolever, who have tested a mindfulness-based intervention with great results.
Laboratory research on regulation of eating shows that individuals with eating problems are generally less aware of experiences of hunger and satiety cues, including taste-specific satiety and feelings of fullness. Kristeller and Quillian-Wolever have developed mindfulness exercises to heighten people's awareness of such cues--and to keep their minds focused on the current moment of eating, and nothing else. They find that these experiences are very powerful, with individuals frequently noticing changes within a few days of applying them to their eating experiences."