Research specifically on hypnotherapy for emotional eating is limited. There is no large, high-quality evidence base that supports a single success percentage. The 75-85% figure on this page is Norwest Wellbeing's own reported outcome range over 2-5 sessions. It is not a research finding.
Kirsch, Montgomery and Sapirstein (1995), in the Journal of Consulting and Clinical Psychology, pooled 18 trials of CBT with and without hypnosis. Adding hypnosis improved outcomes; obesity studies stood out at follow-up. That paper is not an emotional-eating trial.
Delestre and colleagues (2022) ran the HYPNODIET randomised trial in adults with obesity and high food impulsivity. Hypnosis plus nutrition education reduced disinhibition more than nutrition education alone. That is related eating-behaviour work, not a 75-85% emotional-eating success paper.
Smith, Ang, Giles, and Traviss-Turner (2023) reviewed emotional-eating interventions for adults living with overweight or obesity and found that psychological approaches, especially CBT, showed the most promise, with overall evidence still limited. Hypnosis was not established there as a stand-alone, high-percentage treatment.
Taken together, hypnotherapy is a reasonable habit-change option to consider for feeling-to-food patterns. It is not a proven stand-alone treatment for binge-eating disorder.