Obesity Research Today is a free monthly online journal that collates and summarizes the latest research about Obesity, including details on health, diet, prevention, exercise. | ||||||||
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Randomised controlled trial of four commercial weight loss programmes in the UK: initial findings from the BBC "diet trials".Truby H, Baic S, deLooy A, Fox KR, Livingstone MB, Logan CM, Macdonald IA, Morgan LM, Taylor MA, Millward DJ School of Biomedical and Molecular Sciences, Centre for Nutrition, Dietetics and Food, University of Surrey, Guildford GU2 7XH. h.truby@surrey.ac.uk 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. Published 2 June 2006 in BMJ, 332(7553): 1309-14.
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