1. Health and Social Care Information Centre 2014 Statistics on Obesity, Physical Activity and Diet, England: 2014 http://www.hscic.gov.uk/catalogue/PUB13648/Obes-phys-acti-diet-eng-2014-rep.pdf
2. World Health Organization 2013 Country Profiles on Nutrition, Physical Activity and Obesity in the 53 WHO European Region Member States http://www.euro.who.int/__data/assets/pdf_file/0004/243337/Summary-document-53-MS-country-profile.pdf
3. National Institute of Health and Clinical Excellece 2006 Obesity: The Prevention, Identification, Assessment and Management of Overweight and Obesity in Adults and Children http://www.nice.org.uk/guidance/cg43/evidence/cg43-obesity-full-guideline-section-1-introduction-methods-and-recommendations2
4. Scottish Intercollegiate Guidelines Network 2010 Management of Obesity. A National Clinical Guideline 115 http://www.sign.ac.uk/pdf/sign115.pdf