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Doctorate in Clinical Psychology : Main Research Portfolio
: (Alternative Format Thesis) 1) Provision of psychological therapies on adult eating disorder inpatient units: a large scoping review; 2) Service-Related Project: Inpatient experiences of acute admissions processes: a qualitative service evaluation; 3) Mandatory calories on menus: A mixed method evaluation of anti-obesity policy impact on people with eating disorders.

  • Jazz Callen-Davies

Student thesis: Doctoral ThesisDoctor of Clinical Psychology (DClinPsy)

Abstract

Objective; Policies mandating calorie labelling in hospitality settings are implemented worldwide as an anti-obesity measure. Limited research explores how these policies affect individuals with eating disorders. This study used a hypothetical ordering scenario to examine behavioural and psychological outcomes in those reporting diagnoses of anorexia nervosa and bulimia nervosa.

Method; 147 adults with self-reported eating disorder diagnoses completed a hypothetical ordering task, randomised between two experimental conditions containing a calorie-labelled or calorie-omitted menu. Participants were asked to select items as if dining with a friend. Measures of eating disorder psychopathology, calories selected, self-criticism and body image satisfaction were taken. Qualitative data was collected on intent to consume entire portions and if calories influenced decision making.

Results; A significant interaction was found between diagnosis and calorie-labelling. The anorexia nervosa group ordered significantly fewer calories when exposed to a calorie-labelled menu (p = .005). No significant differences were found for the bulimia nervosa group (p = .050) nor for self-criticism (p = .508) or body image satisfaction (p = .966) ratings between experimental conditions.

Conclusions; Calorie labelling may exacerbate restrictive behaviours in those with anorexia nervosa and serious considerations should be given to potential harms of anti-obesity policy on this vulnerable group.
Date of Award10 Sept 2025
Original languageEnglish
Awarding Institution
  • University of Bath
SupervisorJasmin Langdon-Daly (Supervisor) & Vicki Weare (Supervisor)

Keywords

  • alternative format
  • eating disorders

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