- 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
- Language
- eng
- Full Text
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