Participants in an online weight loss program can improve diet quality during weight loss: a randomized controlled trial

Nutrition Journal

Research

Kate M O’Brien¹  Clare E Collins²  Melinda J Hutchesson²  Robin Callister²  Philip Morgan²  Megan Jensen² 

[1] University of Newcastle, 2308 Callaghan, NSW, Australia;University of Newcastle, 2308 Callaghan, NSW, Australia;Priority Research Centre in Physical Activity and Nutrition, University of Newcastle, 2308 Callaghan, NSW, Australia;

关键词: Diet quality;    Index;    Score;    Weight loss;    Intervention;   

DOI  :  10.1186/1475-2891-13-82

 received in 2014-03-17, accepted in 2014-07-22,  发布年份 2014

来源: Springer

【 摘 要 】

BackgroundBetter diet quality has been associated with less weight gain over time. However, few studies have examined the role of diet quality during weight loss. This study aimed to compare changes in diet quality in overweight/obese adults during a weight loss intervention, and determine whether an association between diet quality score and weight loss exists.MethodsOverweight or obese (BMI 25-40 kg/m2) adults, aged 18–60 years, were recruited from the Hunter Region of NSW, Australia and randomized to one of three groups: a standard online weight loss program (n = 94); an enhanced version of this online program that provided additional personalized feedback and reminders (n = 98); or a wait-list control group (n = 97). Diet quality was calculated using the Australian Recommended Food Score (ARFS) with dietary data from the Australian Eating Survey (AES) Food Frequency Questionnaire at baseline and 12-weeks.ResultsThe basic and enhanced groups lost significantly more weight than the control group after 12 weeks (basic -2.2 ± 3.4 kg, enhanced -3.0 ± 4.0 kg, control 0.4 ± 2.4 kg, P < 0.001) with no difference between the basic and enhanced groups. The mean change in ARFS in the enhanced group (2.2 ± 5.7) was significantly higher (P = 0.03) than the control group. There were no significant differences in change in ARFS between the enhanced and basic, or basic and control groups. The ARFS and the fruit, meat, wholegrain, dairy and water sub-scale scores at 12 weeks were significantly associated with greater weight loss (P < 0.05).ConclusionsDiet quality improved significantly in the enhanced group compared to controls following 12-weeks intervention. Furthermore, higher diet quality was associated with greater weight loss.Trial RegistrationACTRN12610000197033.

【 授权许可】

Unknown   
© O’Brien et al.; licensee BioMed Central Ltd. 2014. This article is published under license to BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly credited. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.