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The Effectiveness of Commercial Weight Loss Programmes

A Randomised Control Trial of Commercial Weight Loss Programme in a Community Based Sample of Obese Adults.

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00327821
Enrollment
300
Registered
2006-05-19
Start date
2002-07-31
Completion date
2003-03-31
Last updated
2006-07-21

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Obesity

Brief summary

The objective is to compare the effectiveness of 4 different commercial weight-loss diets available to adults in the UK. This is achieved with a 6 month multi-centre randomised unblinded controlled trial of * Dr Atkins' New Diet Revolution, * The slimFast Plan, * The weight Watchers Pure Points Programme, * Rosemary Conley's Eat Yourself Slim Diet & Fitness Plan. * No diet (control) Subjects are a community based sample of 300 (60 per group) otherwise healthy overweight and obese adults. Main outcome measures are weight and body fat change over 6 months.

Interventions

Sponsors

British Broadcasting Corporation
CollaboratorINDUSTRY
University of Surrey
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to 65 Years
Healthy volunteers
Yes

Inclusion criteria

* Body mass index (BMI) \> 27 and \< 40 kg/m2.

Exclusion criteria

* History of coronary heart disease * Type 1 or Type 2 diabetes * Renal, liver or respiratory failure * Gout * Taking lipid lowering or anti-hypertensive drugs * History of obesity with known cause (i.e. Cushings disease, hypothyroidism) * Previous gastric or weight loss surgery * Taking any weight loss drug (including Orlistat or Sibutramine) * Clinical depression * Eating disorders * Drug or alcohol abuse * Any malabsorptive state (including lactose intolerance) * Being treated for a malignancy * Being pregnant * Breastfeeding

Design outcomes

Primary

MeasureTime frame
Weight loss
Fat loss

Countries

United Kingdom

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Apr 11, 2026