Tim Brunson DCH

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Weight Loss, Hypnosis, and CBT



Researchers from the Department of Psychology at the University of Connecticut published a 3rd meta-analysis of the effect of adding hypnosis to cognitive-behavioral treatments for weight reduction, using additional data from 2 new studies, and computational inaccuracies in both previous meta-analyses were corrected.

Averaged across post-treatment and follow-up assessment periods, the mean weight loss was 6.00 lbs. without hypnosis and 11.83 lbs. with hypnosis. The mean effect size of this difference was 0.66 SD. At the last assessment period, the mean weight loss was 6.03lbs. (2.74 kg) without hypnosis and 14.88 lbs. (6.75 kg) with hypnosis. The effect size for this difference was 0.98 SD. Correlational analyses indicated that the benefits of hypnosis increased substantially over time (r = .74).

The study concludes that hypnosis is an effective adjunct to a cognitive-behavioral program for weight loss.

Citation: Kirsch I. Hypnotic enhancement of cognitive-behavioral weight loss treatments--another meta-reanalysis. Journal of Consulting Clinical Psychology. 1996 Jun; 64 (3): pp. 517-9.

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