The purpose of this study is to conduct a randomised controlled trial to assess the sustained effects on weight, selected risk factors and sense of well-being of offering individualized weight management advice in the primary care setting to patients who wish to lose weight; and to identify the key factors influencing the success of the intervention.

Primary care could make a substantial impact on the increasing prevalence of overweight and obesity and their associated adverse impact on health. The lack of a proven intervention may deter health professionals in primary care from providing support to their overweight patients as few obese people recall receiving weight control advice from a health professional.

In this study we aim to conduct a large scale randomised controlled trial to assess the effectiveness of a longer-term structured lifestyle support programme provided by a research nurse and the provision of pedometers compared to usual care in overweight/ obese adults who wish to lose weight. We will assess the degree of weight loss over a period of 12 months as well as related factors such as changes in waist circumference, quality of life and cost-effectiveness of the interventions.

The research is highly relevant to policy making at both national and local levels.

Inclusion Criteria:

• 18 years or over
• BMI ≥ 25 kg/m2
• GP confirmation

Exclusion Criteria:

• pregnant or lactating women
• patients with renal failure, pacemakers or cancer
• participating in other research affecting weight
• Ability to complete questionnaires
• Ability to give consent