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Patient freedom to choose a weight loss diet in the treatment of overweight and obesity: a randomized dietary intervention in type 2 diabetes and pre-diabetes

Coles, Leah T, Fletcher, Eloise A, Galbraith, Claire E and Clifton, Peter M 2014, Patient freedom to choose a weight loss diet in the treatment of overweight and obesity: a randomized dietary intervention in type 2 diabetes and pre-diabetes, International journal of behavioral nutrition and physical activity, vol. 11, pp. 1-9, doi: 10.1186/1479-5868-11-64.

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Title Patient freedom to choose a weight loss diet in the treatment of overweight and obesity: a randomized dietary intervention in type 2 diabetes and pre-diabetes
Author(s) Coles, Leah T
Fletcher, Eloise AORCID iD for Fletcher, Eloise A orcid.org/0000-0003-3958-9599
Galbraith, Claire E
Clifton, Peter M
Journal name International journal of behavioral nutrition and physical activity
Volume number 11
Article ID 64
Start page 1
End page 9
Total pages 9
Publisher BioMed Central
Place of publication London, Eng.
Publication date 2014-05-16
ISSN 1479-5868
Keyword(s) diabetes mellitus
type 2
prediabetic state
weight loss
obesity
choice
preference
science & technology
life sciences & biomedicine
nutrition & dietetics
physiology
Summary Background
Offering the overweight or obese patient the option of choosing from a selection of weight loss diets has not been investigated in type 2 diabetes. The aim of the study was to investigate if the option to choose from, and interchange between a selection of diets (“Choice”), as opposed to being prescribed one set diet (“No Choice”), improves drop out rates and leads to improved weight loss and cardio-metabolic outcomes.

Methods
The study was a 12 month, randomized parallel intervention. A total of 144 volunteers with type 2 diabetes or pre-diabetes and a BMI >27 were randomized to “No Choice” or “Choice”. Those in the No Choice group were placed on a set weight loss diet (CSIRO) with no change permitted. Those in the Choice group could choose from, and interchange between, the CSIRO, South Beach or Mediterranean diets.

Results
There were no differences in attrition rates or weight loss between the “Choice” and “No Choice”. In a secondary analysis of the intention-to-treat weight loss data with last measured weight carried forward gave a highly significant diet group by time by gender interaction (p = 0.002) with men doing better in the No Choice group overall (maximum difference “No Choice “-2.9 ± 4.6 kg vs. “Choice”-6.2 kg ± 5.3 kg at 6 months) and women doing better in the Choice group overall (maximum difference Choice -3.1 ± 3.7 kg vs. “No Choice” -2.0 kg ± 2.6 kg at 6 months).

Conclusions
Men prefer direction in their weight loss advice and do less well with choice. A gender-specific approach is recommended when prescribing weight loss diets.

Trial registration
anzctr.org.au ACTRN12612000310864.
Language eng
DOI 10.1186/1479-5868-11-64
Field of Research 11 Medical And Health Sciences
13 Education
HERDC Research category C1 Refereed article in a scholarly journal
Copyright notice ©2014, Coles et al.
Free to Read? Yes
Use Rights Creative Commons Attribution licence
Persistent URL http://hdl.handle.net/10536/DRO/DU:30112037

Document type: Journal Article
Collections: School of Exercise and Nutrition Sciences
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Every reasonable effort has been made to ensure that permission has been obtained for items included in DRO. If you believe that your rights have been infringed by this repository, please contact drosupport@deakin.edu.au.