- Title
- Changes to dietary intake during a 12-week commercial web-based weight loss program : a randomized controlled trial
- Creator
- Hutchesson, M. J.; Collins, C. E.; Morgan, P. J.; Watson, J. F.; Guest, M.; Callister, R.
- Relation
- NHMRC
- Relation
- European Journal of Clinical Nutrition Vol. 68, Issue 1, p. 64-70
- Publisher Link
- http://dx.doi.org/10.1038/ejcn.2013.194
- Publisher
- Nature Publishing Group
- Resource Type
- journal article
- Date
- 2014
- Description
- Background/objectives: The primary aim of this secondary analysis was to compare changes in dietary intake among participants randomized to two versions of a 12-week commercial web-based weight loss program (basic or enhanced) with a waiting-list control. An additional investigation compared changes in dietary intake of successful participants (weight loss ≽5%) with those not successful. Subjects/methods: Dietary intake was assessed at baseline and 12 weeks using a validated 120-item semiquantitative food frequency questionnaire. Adults (n=268, 60% female participants, body mass index 32.1±3.9) classified as plausible reporters of energy intake were included in the analyses. Analysis of covariance with baseline observations carried forward for drop-outs (n=38) was used. Results: The basic and enhanced groups significantly increased their percentage of energy contribution from fruits and reduced energy-dense, nutrient-poor foods compared with controls (P<0.001). Successful participants (n=49) reported superior improvements in dietary intake including greater reductions in the mean daily energy intake (P<0.001), the percentage of energy from energy-dense, nutrient-poor foods (−12.0% E vs −4.3% E, P<0.001) and greater increases in the energy contribution from fruits (P<0.001), vegetables (P=0.003) and breads/cereals (P=0.02). Conclusions: Use of a commercial web-based weight loss program facilitated some improvements in the dietary intake. The enhanced web-based tools appeared not to have generated greater improvements in reported dietary intake, compared with the basic or control groups. Those who achieved a weight loss of ≽5% improved their dietary intake in line with the program recommendations and dietary guidelines. Further research to determine web-based components that may improve success and the reasons why programs are successful for some participants is required.
- Subject
- internet; weight loss; diet; obesity
- Identifier
- http://hdl.handle.net/1959.13/1040489
- Identifier
- uon:13786
- Identifier
- ISSN:0954-3007
- Rights
- This version of the article has been accepted for publication, after peer review (when applicable) and is subject to Springer Nature’s AM terms of use, but is not the Version of Record and does not reflect post-acceptance improvements, or any corrections. The Version of Record is available online at: http://dx.doi.org/10.1038/ejcn.2013.194
- Language
- eng
- Full Text
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