Weight Loss

Int J Obes Relat Metab Disord 1998 Mar;22(3):278-81.

Controlled trial of hypnotherapy for weight loss in patients with obstructive sleep apnea.

Stradling J, Roberts D, Wilson A, Lovelock F.

Chest Unit, Churchill Hospital, Oxford, UK.

OBJECTIVE: To assess if hypnotherapy assists attempts at weight loss. DESIGN: Randomised, controlled, parallel study of two forms of hypnotherapy (directed at stress reduction or energy intake reduction), vs dietary advice alone in 60 obese patients with obstructive sleep apnoea on nasal continuous positive airway pressure treatment. SETTING: National Health Service hospital in the UK. MEASURES: Weight lost at 1, 3, 6, 9, 12, 15 and 18 months after dietary advice and hypnotherapy, as a percentage of original body weight. RESULTS: All three groups lost 2-3% of their body weight at three months. At 18 months only the hypnotherapy group (with stress reduction) still showed a significant (P < 0.02), but small (3.8 kg), mean weight loss compared to baseline. Analysed over the whole time period the hypnotherapy group with stress reduction achieved significantly more weight loss than the other two treatment arms (P < 0.003), which were not significantly different from each other. CONCLUSIONS: This controlled trial on the use of hypnotherapy, as an adjunct to dietary advice in producing weight loss, has produced a statistically significant result in favour of hypnotherapy. However, the benefits were small and clinically insignificant. More intensive hypnotherapy might of course have been more successful, and perhaps the results of the trial are sufficiently encouraging to pursue this approach further.

J Dev Behav Pediatr 1996 Oct;17(5):335-41.

Hypnobehavioral approaches for school-age children with dysphagia and food aversion: a case series.

Culbert TP, Kajander RL, Kohen DP, Reaney JB.

Alexander Center for Child Development and Behavior, Park Nicollet Clinic HealthSystem Minnesota, Bloomington 55437, USA.

The purpose of this article is to describe hypnobehavioral treatment of five school-age children with maladaptive eating behaviors, including functional dysphagia, food aversion, globus hystericus, and conditioned fear of eating (phagophobia). The unique treatment approach described emphasizes the successful use of self-management techniques, particularly hypnosis, by all five children. Common etiological factors, treatment strategies, and proposed mechanisms of change are discussed. To the authors' knowledge, this is the first such case series in the mainstream pediatric literature describing the use of a hypnobehavioral approach for children with these maladaptive eating problems.

J Clin Psychol. 1985 Jan;41(1):35-41

Effectiveness of hypnosis as an adjunct to behavioral weight management.
Bolocofsky DN, Spinler D, Coulthard-Morris L.

This study examined the effect of adding hypnosis to a behavioral weight-management program on short- and long-term weight change. One hundred nine subjects, who ranged in age from 17 to 67, completed a behavioral treatment either with or without the addition of hypnosis. At the end of the 9-week program, both interventions resulted in significant weight reduction. However, at the 8-month and 2-year follow-ups, the hypnosis clients showed significant additional weight loss, while those in the behavioral treatment exhibited little further change. More of the subjects who used hypnosis also achieved and maintained their personal weight goals. The utility of employing hypnosis as an adjunct to a behavioral weight-management program is discussed.

Am J Clin Hypn. 1994 Apr;36(4):248-57

The (limited) possibilities of hypnotherapy in the treatment of obesity.

Vanderlinden J, Vandereycken W.

University Center St.-Jozef, Kortenberg, Belgium.

In this paper we review the possibilities and limitations of hypnotherapeutic techniques in the treatment of obesity. In spite of some promising reports, the findings and opinions about the effectiveness of hypnosis in the treatment of obesity vary greatly. We provide a brief overview of specific hypnotherapeutic techniques--such as teaching relaxation, increasing self-control, encouraging physical exercise, altering self-esteem and body image, strengthening motivation, and exploring ambivalence for change--that can be involved in a multidimensional approach to obesity. Case reports illustrate the use of these techniques.

Psychol Rep. 1996 Oct;79(2):659-68

Participation in multicomponent hypnosis treatment programs for women's weight loss with and without overt aversion.

Johnson DL, Karkut RT.

Studies of hypnotic, covert and overt aversive techniques have yielded equivocal results when each has been examined for a singular effect on weight lost. Some have advocated study of effective combinations of techniques before investing in other applications. Two programs of hypnosis, imagery, diet, tape, behavior management and support but differing in the overt use of aversion (electric shock, disgusting tastes smells) were examined. A total of 172 overweight adult women were treated, 86 in a hypnosis only and 86 in an overt aversion and hypnosis program. Both programs achieved significant weight losses. Although subjects who received overt aversion attained somewhat more desired goals and lost more weight than subjects recovering only hypnosis, the differences were not significant.

Hypnotherapy in weight loss treatment.
by Cochrane, Gordon; Friesen, John
from Journal of Consulting and Clinical Psychology. 1986 Aug Vol 54(4) 489-492

Investigated the effects of hypnosis as a treatment for weight loss among women. The sample consisted of 60 women (aged 20-65 yrs) who were at least 20% overweight and were not in any other treatment program. Six client variables (suggestibility, self-concept, quality of family origin, age of obesity onset, education level, and socioeconomic status [SES]) and 1 process variable (multimodal imagery) were analyzed in relation to the dependent variable (weight loss). Two experimental groups, hypnosis plus audiotapes and hypnosis without audiotapes, and the control group were investigated for weight loss immediately after treatment and again after a 6-mo follow-up. The primary hypothesis that hypnosis is an effective treatment for weight loss was confirmed, but the 7 concomitant variables and the use of audiotapes were not significant contributors to weight loss. (26 ref) (PsycINFO Database Record (c) 2005 APA, all rights reserved)

Cochrane Database Syst Rev. 2005 Apr 18;(2):CD003818.

Psychological interventions for overweight or obesity.

Shaw K, O'Rourke P, Del Mar C, Kenardy J.

Public and Environmental Health Unit, Department of Health and Human Services, Public Health Unit, 3 / 90 Davey Street, Hobart, Tasmania, Australia, 7000. kelly.shaw@dhhs.tas.gov.au

BACKGROUND: Overweight and obesity are global health problems which are increasing throughout the industrialised world. If left unchecked, they will continue to contribute to the ever increasing noncommunicable disease burden. OBJECTIVES: To assess the effects of psychological interventions for overweight or obesity as a means of achieving sustained weight loss. SEARCH STRATEGY: Studies were obtained from searches of multiple electronic bibliographic databases. The date of the latest search was June 2003. SELECTION CRITERIA: Trials were included if the fulfilled the following criteria: 1) they were randomised controlled clinical trials of a psychological intervention versus a comparison intervention, 2) one of the outcome measures of the study was weight change measured by any method, 3) participants were followed for at least three months, 4) the study participants were adults (18 years or older) who were overweight or obese (BMI > 25 kg/m(2)) at baseline. DATA COLLECTION AND ANALYSIS: Two people independently applied the inclusion criteria to the studies identified and assessed study quality. Disagreement was resolved by discussion or by intervention of a third party. Meta-analyses were performed using a fixed effect model. MAIN RESULTS: A total of 36 studies met the inclusion criteria and were included in the review. Overall, 3495 participants were evaluated. The majority of studies assessed behavioural and cognitive-behavioural weight reduction strategies. Cognitive therapy, psychotherapy, relaxation therapy and hypnotherapy were assessed in a small number of studies. Behaviour therapy was found to result in significantly greater weight reductions than placebo when assessed as a stand-alone weight loss strategy (WMD -2.5 kg; 95% CI -1.7 to -3.3). When behaviour therapy was combined with a diet / exercise approach and compared with diet / exercise alone, the combined intervention resulted in a greater weight reduction. Studies were heterogeneous however the majority of studies favoured combining behaviour therapy with dietary and exercise interventions to improve weight loss. Increasing the intensity of the behavioural intervention significantly increased the weight reduction (WMD -2.3 kg; 95% CI -1.4 to - 3.3). Cognitive-behaviour therapy, when combined with a diet / exercise intervention, was found to increase weight loss compared with diet / exercise alone (WMD -4.9 kg; 95% CI -7.3 to - 2.4). No data on mortality, morbidity or quality of life were found. AUTHORS' CONCLUSIONS: People who are overweight or obese benefit from psychological interventions, particularly behavioural and cognitive-behavioural strategies, to enhance weight reduction. They are predominantly useful when combined with dietary and exercise strategies. The bulk of the evidence supports the use of behavioural and cognitive-behavioural strategies. Other psychological interventions are less rigorously evaluated for their efficacy as weight loss treatments.

Proc Natl Acad Sci U S A. 2005 Sep 27;102(39):13724-31. Epub 2005 Aug 3.

False beliefs about fattening foods can have healthy consequences.

Bernstein DM, Laney C, Morris EK, Loftus EF.

University of Washington and Kwantlen University College, Department of Psychology, Box 351525, Seattle, WA 98195-1525, USA.

We suggested to 228 subjects in two experiments that, as children, they had had negative experiences with a fattening food. An additional 107 subjects received no such suggestion and served as controls. In Experiment 1, a minority of subjects came to believe that they had felt ill after eating strawberry ice cream as children, and these subjects were more likely to indicate not wanting to eat strawberry ice cream now. In contrast, we were unable to obtain these effects when the critical item was a more commonly eaten treat (chocolate chip cookie). In Experiment 2, we replicated and extended the strawberry ice cream results. Two different ways of processing the false suggestion succeeded in planting the false belief and producing avoidance of the food. These findings show that it is possible to convince people that, as children, they experienced a negative event involving a fattening food and that this false belief results in avoidance of that food in adulthood. More broadly, these results indicate that we can, through suggestion, manipulate nutritional selection and possibly even improve health.