Summarises research evidence on the relationship between faith and health, and on the role of faith communities in improving health and reducing health inequalities. It also provides an overview of faith in the UK and the health problems prevalent within different ethnic and faith communities. The literature was identified through searches carried out on a range of databases and organisational websites, and was structured into two ‘strands’. Strand one looks at how faith based organisations represent communities with poor health outcomes, and provide an opportunity for public health services to access these ‘hard to reach’ groups. Strand two looks at how the social and spiritual capital gained by belonging to a faith community can result in physical and mental health benefits and mitigate other determinants of poor health. Findings from the review included that regular engagement in religious activities is positively related to various aspects of wellbeing, and negatively associated with depressive symptoms. There was also evidence to show that volunteering can positively affect the health and wellbeing of volunteers, and that faith communities represent a large proportion of national volunteering. The report provides recommendations for faith-based organisations and public health bodies, on how they might work effectively in partnership to realise the potential for faith groups of improving health and wellbeing.