Psychosocial effects of hypnosis in patients with obesity: a pilot randomized controlled trial.

The usefulness of hypnosis in patients with obesity needs to be better understood in terms of various outcomes, in addition to weight loss. The aim of this research was to investigate the effects of hypnosis and self-hypnosis in combination with nutrition education for patients with obesity, as opposed to nutrition education alone, on the secondary outcomes of quality of life (QoL), coping strategies, and self-esteem within a randomized controlled trial (RCT). Eighty-two participants were included in this study (84.3% were women), with 41 in each group. Further, 70 participants had completed treatment. The intervention consisted of eight group sessions (about one every two weeks). Participants completed self-reported questionnaires assessing their QoL, coping strategies, and self-esteem (SF-36, CISS, SEI) before and after the intervention. Non-parametric analyses were performed. Both groups had comparable characteristics at inclusion (sociodemographic information, clinical information, and scores for the self-reported scales). At eight months (i.e. two months after intervention completion), patients from the hypnosis group used more task-oriented coping (p < .001), less emotion-oriented coping (p < .01) and distraction (p < .05), and had more energy/less fatigue (p < .001) compared to the group who did not undergo hypnosis. Other improvements were observed in the hypnosis group, but there were no significant differences compared with the non-hypnosis group in terms of QoL dimensions and general self-esteem. In conclusion, hypnosis and self-hypnosis in combination with nutrition education seem to be promising interventions to help patients deal with obesity, especially by improving their coping strategies.

Hypnosis reduces food impulsivity in patients with obesity and high levels of disinhibition: HYPNODIET randomized controlled clinical trial.

BACKGROUND: The obesogenic environment of Western countries raises questions about its current management. Some clinical studies have explored hypnosis, although the current state of knowledge does not lead to definitive conclusions about its efficacy. OBJECTIVES: We assessed the impact of Ericksonian hypnosis and self-hypnosis on disinhibition of eating in adults with obesity and high food impulsivity levels, compared with standard nutritional education. METHODS: From September 2014 to July 2015, adults with BMI (in kg/m2) of 30-40 and a high disinhibition score [>8 on the Three Factor Eating Questionnaire (TFEQ-51)] were included in a randomized controlled trial. The control and hypnosis groups received the same standard nutrition education in 8 workshops. In the hypnosis group, subjects had 8 sessions of hypnosis combined with training in self-hypnosis. Disinhibition (primary outcome) and other scores from the TFEQ-51 as well as anthropometric, food intake, cardiometabolic, and physical activity variables were collected at inclusion and at 8 mo. RESULTS: Of 82 randomly assigned adults, 70 participated in all sessions; 80 participated in ≥1 session and were included in the main analysis (hypnosis group, n = 41; control group, n = 39). After 8 mo of follow-up, disinhibition scores adjusted for baseline values were lower in the hypnosis group, with a mean between-group difference of 4.2 (95% CI: 2.8, 5.5; P < 0.001); 67.7% of adults in the hypnosis group had normalized their disinhibition (compared with 11.1% in control; P < 0.0001). Differences for weight (1.8 kg; 95% CI: -0.1, 3.7 kg; P = 0.052), BMI (0.8; 95% CI: 0.1, 1.4; P = 0.028), susceptibility to hunger score (2.2; 95% CI: 1.0, 3.3; P < 0.001), and its 2 subscales also favored the hypnosis group. CONCLUSIONS: In the management of adults with obesity and a high disinhibition score, hypnosis and self-hypnosis can significantly improve the deep mechanisms of eating behaviors and seem to have a beneficial effect on weight loss.This trial was registered at clinicaltrials.gov as NCT02292108.