Does psychotherapy for binge eating remediate nutritional intake in people with bulimia nervosa and binge eating disorder? (2022)
Type of ContentTheses / Dissertations
Degree NameMaster of Science
People who binge eat (those with bulimia nervosa (BN) and binge eating disorder (BED)) have a significantly disturbed nutritional intake compared to people who don’t binge eat. Moreover, people who binge eat consume excess energy, have altered macronutrient ratios, and have diets that are deficient in many vitamins and minerals. While the nutritional intakes of people who binge eat are well-researched, few studies contrast the nutritional intakes of people with BN and BED. Additionally, while cognitive behavioural therapy (CBT) is the most researched psychotherapy for binge eating-related disorders, little is known about the nutritional outcomes of this treatment. Appetite-focussed cognitive behavioural therapy (CBT-A) is an augmented version of CBT that provides modified nutritional advice and aims to improve response to cues of hunger and satiety. CBT-A has good treatment outcome, similar to that of traditional CBT, however whether there is a nutritional benefit attributable to the nutrition-related augmentations of CBT-A has not been investigated. A sample of 79 women with either BN (n = 38) or BED (n = 41) were randomised to CBT or schema therapy (n = 57), or to CBT-A (n = 22). Participants completed seven-day prospective food records pre-, mid-, and post-treatment and these records were entered into a nutritional software that provided average intakes of total energy, macronutrients and micronutrients. Nutrient intakes were compared to empirically-determined healthy intakes or ratios, and summary measures of macronutrient, micronutrient, and total adequacy were created. Nutritional intake and nutritional adequacy were modelled over time and between groups using linear mixed models analyses. Modelling nutritional variables suggested that psychotherapies for transdiagnostic binge eating reduced the energy, macronutrient, and mineral intakes over weekly sessions of treatment and many of these changes were maintained over monthly sessions. Vitamin intakes did not change despite reductions in food intake, and participants received less of their total energy from sugars, total fats, and saturated fats, and more from protein. These changes occurred alongside increased macronutrient adequacy over the first half of treatment and reduced micronutrient adequacy over the first half of treatment, which was maintained at the end of treatment. Little separated people with BN and BED nutritionally, and nutritional responses to treatment did not differ between diagnostic groups. Nutritional responses to the two treatment types were indistinguishable. Results support the use of transdiagnostic nutritional advice, however, fail to support the modified nutritional advice of CBT-A. The current study broadens knowledge about the nutritional outcomes of treatments for binge eating and these results likely have implications in understanding the high medical burden associated with BN and BED.
RightsAll Rights Reserved
Showing items related by title, author, creator and subject.
An examination of temperament, eating behaviours, and body dissatisfaction as predictors of weight suppression in anorexia nervosa, bulimia nervosa and binge eating disorder. Fuller, Ana Maria (2021)Understanding factors that contribute to weight suppression across eating disorders as well as unique factors that may promote weight suppression for specific disorders is an important field of study. Weight suppression ...
Spatial utilization predicts animal social contact networks are not scale-free James A; McLeod J; Rouco C; Richardson K; Tompkins D (2017)While heterogeneity in social behaviour has been described in many human contexts it is often assumed to be less common in the animal kingdom even though scale-free networks are observed. This homogeneity raises the question ...
KELT-22Ab: A Massive Hot Jupiter Transiting a Near Solar Twin Labadie-Bartz J; Rodriguez JE; Stassun KG; Ciardi DR; Johnson MC; Gaudi BS; Penev KM; Bieryla A; Latham DW; Pepper J; Collins KA; Evans P; Relles HM; Siverd RJ; Bento J; Yao X; Stockdale C; Tan T-G; Zhou G; Colon KD; Eastman JD; Albrow MD; Malpas A; Bayliss D; Beatty TG; Bozza V; Cohen DH; Curtis IA; DePoy DL; Feliz D; Fulton BJ; Gregorio J; James D; Jang-Condell H; Jensen EL; Johnson JA; Johnson SA; Joner MD; Kielkopf J; Kuhn RB; Lund MB; Manner M; Marshall JL; McCrady N; McLeod KK; Oberst TE; Penny MT; Pogge R; Reed PA; Sliski DH; Stephens DC; Stevens DJ; Trueblood M; Trueblood P; Jr SV; Wittenmyer RA; Wright JT; Zambelli R; Berlind P; Calkins ML; Esquerdo GA (2018)We present the discovery of KELT-22Ab, a hot Jupiter from the KELT-South survey. KELT-22Ab transits the moderately bright ($V\sim 11.1$) Sun-like G2V star TYC 7518-468-1. The planet has an orbital period of $P = 1.3866529 ...