Thomas A. Wadden, PhD, is the Albert J. Stunkard Professor of Psychology in Psychiatry at the Perelman School of Medicine, University of Pennsylvania. He also is Visiting Professor of Psychology at Haverford College. Dr. Wadden's more than 500 scientific publications have focused on the treatment of obesity by methods including diet, physical activity, behavior therapy, medication, and surgery. He also has investigated the health and psychosocial consequences of obesity and its associated eating disorders. Dr. Wadden is past president of the Obesity Society and has served on numerous panels for the National Institutes of Health. He is the recipient of numerous honors, including the TOPS Research Achievement Award from the Obesity Society, mentoring awards from the Perelman School of Medicine and the Obesity Society, and the Distinguished Alumni Award from the Department of Psychology at The University of North Carolina at Chapel Hill.

George A. Bray, MD, is Boyd Professor Emeritus at the Pennington Biomedical Research Center, Louisiana State University; Professor of Medicine Emeritus at the Louisiana State University Medical Center; and Visiting Scientist at the Children's Hospital of Oakland Research Institute. With over 2,000 scientific publications, Dr. Bray has conducted influential research on the causes of obesity, dietary approaches to the prevention of hypertension and diabetes, and dietary approaches to weight loss. He is a Master in the American College of Physicians, the American College of Endocrinology, and the American Board of Obesity Medicine. Other honors include the Lifetime Achievement Award from the North American Association for the Study of Obesity, induction into the Johns Hopkins Society of Scholars, and the Presidential Medal from the Obesity Society.

I. Prevalence, Consequences, and Etiology of Obesity
1. Epidemiology and Health and Economic Consequences of Obesity, Graham A. Colditz & Hank Dart
2. Gut-to-Brain Mechanisms of Body Weight Regulation, Matthew R. Hayes
3. Energy Expenditure and Obesity, Kara L. Marlatt & Eric Ravussin
4. Genetics of Obesity, I. Sadaf Farooqi
5. Human Energy Homeostasis and the Gut Microbiome, Michael Rosenbaum & Rudolph L. Leibel
II. Behavioral, Environmental, and Psychosocial Contributors to Obesity
6. The Role of Portion Size, Energy Density, and Variety in Obesity and Weight Management, Barbara J. Rolls
7. Physical Activity and the Development of Obesity, Claude Bouchard, Peter T. Katzmarzyk, & Robert Ross
8. Sleep and Obesity, Andrea M. Spaeth & David F. Dinges
9. Social, Economic, and Physical Environmental Contributors to Obesity among Adults, Joreintje Dingena Mackenbach, Jeroen Lakerveld, & Johannes Brug
10. Psychosocial Contributors to and Consequences of Obesity, Rebecca M. Puhl & Rebecca L. Pearl
11. Obesity, Eating Disorders, and Addiction, Courtney McCuen-Wurst & Kelly C. Allison
III. Health Consequences of Weight Reduction
12. The Impact of Intentional Weight Loss on Major Morbidity and Mortality, Edward W. Gregg & Marcela Rodriguez Flores
13. Weight Loss and Changes in Psychosocial Status and Cognitive Function, Candice A. Myers & Corby K. Martin
14. Effects of Lifestyle Interventions on Health-Related Quality of Life and Physical Functioning, W. Jack Rejeski & Donald A. Williamson
IV. Assessment of Patients with Obesity
15. Medical Evaluation of Patients with Obesity, Rekha B. Kumar & Louis J. Aronne
16. Behavioral Assessment of Patients with Obesity, Jena A. Shaw Tronieri & Thomas A. Wadden
V. Treatment of Obesity in Adults
17. An Overview of the Treatment of Obesity in Adults, Thomas A. Wadden, Zayna M. Bakizada, Steven Z. Wadden, & Naji Alamuddin
18. Dietary Treatment of Overweight and Obesity, Arne S. Astrup
19. Physical Activity and Weight Management, John M. Jakicic, Renee J. Rogers, Sally A. Sherman, & Sara J. Kovacs
20. Behavioral Treatment of Obesity, Stephanie Gomez-Rubalcava, Kaitlin Stabbert, & Suzanne Phelan
21. The Role of Medications in Weight Management, George A. Bray & Donna H. Ryan
22. Surgical Treatment of Obesity, Zubaidah Nor Hanipah, Ali Aminian, & Philip R. Schauer
23. Maintenance of Weight Lost in Behavioral Treatment of Obesity, Michael G. Perri & Aviva H. Ariel-Donges
VI. Additional Approaches to and Resources for the Treatment of Obesity
24. The Emerging Field of Obesity Medicine, Robert F. Kushner & Scott Kahan
25. Coverage of Obesity Treatment: Costs and Benefits, Morgan Downey & Theodore K. Kyle
26. Obesity Treatment Perspectives in U.S. Racial/Ethnic Minority Populations, Shiriki K. Kumanyika
27. Treatment of Obesity in Primary Care, Adam G. Tsai & Thomas A. Wadden
28. Remotely Delivered Interventions for Obesity, Deborah F. Tate, Brooke T. Nezami, & Carmina G. Valle
29. Commercial Weight-Loss Programs, Kimberly A. Gudzune & Jeanne M. Clark
30. Treatment of Obesity in Community Setting, Delia Smith West, Rebecca A. Krukowski, & Chelsea A. Larsen
31. Alternative Behavioral Weight Loss Approaches: Acceptance and Commitment Therapy and Motivational Interviewing, Meghan L. Butryn, Leah M. Schumacher, & Evan M. Forman
32. Behavioral Economics and Weight Management, Mitesh S. Patel & Kevin G. M. Volpp
33. Nonsurgical Interventional Modalities for the Treatment of Obesity, Jacqueline M. Soegaard Ballester, Casey H. Halpern, Noel N. Williams, & Kristoffel R. Dumon
34. Treatment of Eating Disorders in Persons with Obesity, Carlos M. Grilo
35. Obesity and Body Image Dissatisfaction, David B. Sarwer, Colleen M. Tewksbury, & Heather M. Polonsky
36. Obesity, Weight Management, and Self-Esteem, Carol Johnson
VII. Childhood Obesity and Obesity Prevention
37. The Development of Childhood Obesity, Tanja V. E. Kral & Robert I. Berkowitz
38. Prevention of Obesity in Youth: Findings from Controlled Trials, Hannah G. Lawman, Alexis C. Wojtanowski, & Gary D. Foster
39. Behavioral Treatment of Obesity in Youth, Katherine N. Balantekin, Denise E. Wilfley, & Leonard H. Epstein
40. Pharmacological Treatment of Pediatric Obesity, Robert I. Berkowitz & Ariana M. Chao
41. Bariatric Surgery in Adolescents with Severe Obesity, Andrew J. Beamish & Thomas H. Inge
42. Using Public Policy to Address Obesity: Past, Present, and Future, Marlene B. Schwartz & Kelly D. Brownell
Author Index
Subject Index