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Randomized Controlled Trial
. 2006 Jun 3;332(7553):1309-14.
doi: 10.1136/bmj.38833.411204.80. Epub 2006 May 23.

Randomised controlled trial of four commercial weight loss programmes in the UK: initial findings from the BBC "diet trials"

Helen Truby  1 , Sue Baic, Anne deLooy, Kenneth R Fox, M Barbara E Livingstone, Catherine M Logan, Ian A Macdonald, Linda M Morgan, Moira A Taylor, D Joe Millward
Affiliations
Randomized Controlled Trial

Randomised controlled trial of four commercial weight loss programmes in the UK: initial findings from the BBC "diet trials"

Helen Truby et al. BMJ. .

Erratum in

  • BMJ. 2006 Jun 17;332(7555):1418

Abstract

Objective: To compare the effectiveness of four commercial weight loss diets available to adults in the United Kingdom.

Design: Six month multicentre randomised unblinded controlled trial.

Setting: Community based sample of otherwise healthy overweight and obese adults.

Interventions: Dr Atkins' new diet revolution, Slim-Fast plan, Weight Watchers pure points programme, and Rosemary Conley's eat yourself slim diet and fitness plan.

Main outcome measures: Weight and body fat changes over six months.

Results: All diets resulted in significant loss of body fat and weight over six months. Groups did not differ significantly but loss of body fat and weight was greater in all groups compared with the control group. In an intention to treat analysis, average weight loss was 5.9 kg and average fat loss was 4.4 kg over six months. The Atkins diet resulted in significantly higher weight loss during the first four weeks, but by the end was no more or less effective than the other diets.

Conclusions: Clinically useful weight loss and fat loss can be achieved in adults who are motivated to follow commercial diets for a substantial period. Given the limited resources for weight management in the NHS, healthcare practitioners should discuss with their patients programmes known to be effective.

Trial registration: Clinical trials NCT00327821.

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Figures

Fig 1
Fig 1
Flow of participants through the BBC diet trials
Fig 2
Fig 2
Weight loss during the BBC diet trials
Fig 3
Fig 3
Absolute weight loss of participants who completed the BBC diet trials
See this image and copyright information in PMC

Comment in

  • The BBC diet trials.
    Arterburn D. Arterburn D. BMJ. 2006 Jun 3;332(7553):1284-5. doi: 10.1136/bmj.332.7553.1284. BMJ. 2006. PMID: 16740532 Free PMC article. No abstract available.
  • How successful are commercial weight-loss programs?
    Copeland PM. Copeland PM. Nat Clin Pract Endocrinol Metab. 2006 Dec;2(12):658-9. doi: 10.1038/ncpendmet0345. Nat Clin Pract Endocrinol Metab. 2006. PMID: 17143308 No abstract available.

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