Cognitive Behavioral Therapy (CBT) for Bulimia Nervosa (BN) and Binge Eating Disorder (BED) is the most effective type of therapy for any eating disorder. Most surprising is that CBT is rarely used. Too often, I see people who binge who have never tried CBT.
This therapy was first adapted in the early 1990’s, at the start of the development of treatment for eating disorders. A handbook written at the time by C. Fairburn clearly lays out the approach to treat binging and the success rate.
All CBT involves homework, and for BN and BED, it’s writing a daily food log narrated by a diary of thoughts and feelings throughout the day at each meal and snack. The initial purpose of the log is to attempt to outline the way the eating disorder intertwines with one’s inner world. Understanding the link between internal experience and binging uncovers the otherwise hidden mechanism of the eating disorder and exposes new ways to change the patterns and stop binging.
On the surface, this plan is remarkably effective. People with BN and BED are usually baffled as to how and when they binge and can’t identify any clear triggers. The process of uncovering how the eating disorder works feels miraculous to them and brings so much hope of getting better.
A few other less obvious parts of CBT spur momentum toward recovery as well. First, writing out the inner working of the eating disorders combats shame and secrecy. The more hidden the illness, the more shame and secrecy grow, and these two experiences lead to negative feelings about oneself, the most common trigger for a binge. So the log itself helps to combat two of the most nefarious forces in the eating disorder.
Second, the log creates a dynamic of collaboration and cooperation between the therapist and patient. It becomes immediately clear that recovery is a team effort and that the log is a necessary component of successful treatment. Since people with eating disorders feel so isolated, the log mitigates that feeling almost immediately.
So if CBT has been shown to be so effective for BN and BED, why isn’t it standard treatment in the field? The answer boils down to the lack of communication of standard guidelines about eating disorder treatment. CBT is not a secret, but providers who treat people with eating disorders don’t need a fund of knowledge to do so. If patients don’t know what to look for, they may end up seeing someone not versed in CBT.
First and foremost, it behooves people with BN and BED to know what treatment works. Armed with that information, patients can tailor their choices to find someone who knows about CBT.