Elizabeth Parks Prout, MD, MSCE

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Elizabeth Parks Prout, MD, is a board certified nutrition pediatrician, a childhood obesity researcher, and Medical Director of the Adolescent Bariatric Surgery Program, part of the Healthy Weight Program at Children's Hospital of Philadelphia.

Areas of Expertise: Lipid disorders - high cholesterol, Impaired glucose tolerance/pre-diabetes, Medical management of severely obese adolescents after the laparoscopic sleeve gastrectomy, Medical management of severe obesity in children, Non-alcoholic fatty liver disease, Nutrition, Preparation of severely obese adolescents before metabolic and bariatric surgery, Severe obesity in adolescents, Severe obesity in children under age 5, Vitamin D deficiency, Weight management
Locations: Main Hospital; Specialty Care, King of Prussia

Phone: 215-590-3630

Education and Training

Medical School

MD - Tufts University School of Medicine, Boston, MA


Pediatrics - Baystate Medical Center, Springfield, MA


Pediatrics - Baystate Medical Center, Springfield, MA


Nutrition - The Children's Hospital of Philadelphia, Philadelphia, PA

Board Certification

Diplomate – American Board of Obesity Medicine (ABOM)
Pediatrics – American Board of Pediatrics
Physician Nutrition Specialist (PNS) – National Board of Physician Nutrition Specialists (NBPNS)

Undergraduate Degree

AB in Biochemistry and Molecular Biology - Dartmouth College, Hanover, NH

Graduate Degree

Masters of Science in Clinical Epidemiology - The University of Pennsylvania, Philadelphia, PA

Additional Training

Certificate in Ambulatory Weight Management - Boston University School of Medicine, Boston, MA

Titles and Academic Titles

Attending Physician

Medical Director, Adolescent Bariatrics Arm of the Healthy Weight Program

Director, Resting Energy Expenditure Testing (REE), Nutrition Support Service

Director, Pediatric Obesity Medicine Fellowship

Co-Director, Obesity Education

Assistant Professor of Clinical Pediatrics (Gastroenterology, Hepatology and Nutrition), Perelman School of Medicine at the University of Pennsylvania

Conditions Treated

Departments and Services




Parks EP, Allison KC, Bruton Y, Khalil T, Mitchell JA: Gamification to Promote Physical Activity in Youth and Mothers With Obesity. Pediatr Exerc Sci Page: 1-8, Feb 2024 Notes: Online ahead of print.


Rouhi AD, Ghanem YK, Hoeltzel GD, Yi WS, Collins JL, Prout EP, Williams NN, Dumon KR: Quality and Readability of Online Patient Information on Adolescent Bariatric Surgery. Obes Surg 33(1): 397-399, January 2023 Notes: doi: 10.1007/s11695-022-06385-2. Epub 2022 Dec 5.

Rothman J, Shirley MK, Parks EP, Wu GD, Kelly A, Ford E, Zemel BS: African American mothers' perceptions of infant body size are prospectively associated with infant growth and BMI. Am J Hum Biol 35(7): e23890, July 2023 Notes: doi: 10.1002/ajhb.23890. Epub 2023 Mar 10.


Hoeltzel GD, Swendiman RA, Tewksbury CM, Parks EP, Williams NN,Dumon KR: How safe is adolescent bariatric surgery? An analysis of short-term outcomes. J Pediatr Surg 57(8): 1654-1659, August 2022 Notes: doi: 10.1016/j.jpedsurg.2021.08.018. Epub 2021 Sep 5.

Watach AJ, Bishop-Gilyard CT, Ku H, Afolabi-Brown O, Parks EP, Xanthopoulos MS: A social media intervention for the families of young Black men with obstructive sleep apnoea. Health Educ J 81(5): 540-553, August 2022 Notes: doi: 10.1177/00178969221093924. Epub 2022 May 4.


Batsis JA, Apolzan, JW, Bagley PJ, Blunt, HB, Gil S, Golden A, Gundarmraj S, Heymsfield S, Kahan, S, Kopatsis K, Port A, Parks Prout EP, Rubino, Domenica, Saunders K, Shean R, Tabaza L, Stanley A, Tchang B, Gundumaraj S, Kildambi, S.: A Systematic Review of Dietary Supplements and Alternative Therapies for Weight Loss. Obesity (Silver Spring) 29(7): 1102-1113, July 2021 Notes: doi: 10.1002/oby.23110.

Braddock AS, Phad A, Tabak R, Kumanyika S, Johnston S, Koopman R, Prout-Parks E, McQueen A: Assessing Racial and Ethnic Discrimination in Children: A Scoping Review of Available Measures for Child Health Disparities Research. Health Equity 5(1): 727-737, October 2021 Notes: doi: 10.1089/heq.2021.0008. eCollection 2021.


Parks EP, Finnerty DD, Panganiban J, Frasso R, Bishop-Gilyard C, Tewksbury CM, Williams NN, Dumon KR, Cordero G, Hill DL, Sarwer DB: Perspectives of adolescents with severe obesity on social Media in Preparation for weight-loss surgery: a qualitative study. BMC Pediatr 20(1): 96, March 2020 Notes: doi: 10.1186/s12887-020-1992-7.


Kelley JC, Stettler-Davis N, Leonard MB, Hill D, Wrotniak B, Shults J, Stallings VA, Berkowitz R, Xanthopoulos MS, Parks EP, Klieger SB, Zemel BS: Effects of a Randomized Weight Loss Intervention Trial in Obese Adolescents on Tibia and Radius Bone Geometry and Volumetric Density. J Bone Miner Res 33(1): 42-53, January 2018 Notes: doi: 10.1002/jbmr.3288.

Parks EP, Moore RH, Li Z, Bishop-Gilyard CT, Garrett AR, Hill DL, Bruton YP, Sarwer DB: Assessing the Feasibility of a Social Media to Promote Weight Management Engagement in Adolescents with Severe Obesity: Pilot Study. JMIR Res Protoc 7(3): e52, March 2018 Notes: doi: 10.2196/resprot.8229.


Gerber JS, Bryan M, Ross RK, Daymont C, Parks EP, Localio AR, Grundmeier RW, Stallings VA, Zaoutis TE,: "Antibiotic Exposure During the First 6 months of Life and Weight Gain During Childhood" JAMA  March 2016.

Parks EP, Kazak A, Kumanyika S, Lewis L, Barg FK: Perspectives on Stress, Parenting and Child Obesity-related Behaviors in Black Families. Health Educ Behav January 2016.


Parks EP, Zemel B, Moore RH, Berkowitz RI: Change in body composition during a weight loss trial in obese adolescents. Pediatr Obes 9(1): 26-35, February 2014 Notes: doi: 10.1111/j.2047-6310.2012.00139.x.


Parks EP, Zemel B, Moore RH, Berkowitz RI: Change in body composition during a weight loss trial in obese adolescents. Pediatr Obes 2013 (epub ahead of print) Notes: doi: 10.1111/j.2047-6310.2012.00139.x.

Hill DL, Parks EP, Zemel BS, Shults J, Stallings VA, Stettler N: Resting Energy Expenditure and Adiposity Accretion among Children with Down Syndrome: A Three Year Prospective Study. Euro J Clin Nutr 67: 1087-1091, Oct 2013 Notes: doi:10.1038/ejcn.2013.137


Huang SH, Parks EP, Kumanyika SK, Grier SA, Shults J, Stallings VA, Stettler N: Child-feeding practices among Chinese-American and non-Hispanic white caregivers. Appetite 58(3): 922-7, 2012.

Parks EP, Kumanyika S, Moore RH, Stettler S, Wrotniak BH, Kazak A: Influence of Stress in Parents on Child Obesity and Related Behaviors Pediatrics 130(5): e1096-1104, 2012.


Parks EP, Kumanyika S, Stettler N. Practical application of the nutrition recommendations for the prevention and treatment of obesity in pediatric primary care. Pediatr Ann. 2010 Mar;39(3):147-53. doi: 10.3928/00904481-20100223-05. No abstract available.




Kohut TJ, Robbins JL, Parks EP, Katz LE, Brothers JA, Panganiban JA: Obesity and Childhood. Obesity and Diabetes: New Surgical and Nonsurgical Approaches, 2nd Edition. Springer, December 2020.

Maqbool A, Parks EP: Gastrointestinal Diseases. Present Knowledge in Nutrition, 11th Edition. Marriott B, Birt D, Yates A, Stallings V (eds.). Washington DC: International Life Sciences Institute, July 2020.

Parks EP, Shaikhkhalil A, Mascarenhas M, Goh V: Nutrition Requirements of Growth. Present Knowledge in Nutrition, 11th Edition. Marriott B, Birt D, Yates A, Stallings V (eds.). Washington DC: International Life Sciences Institute, July 2020.


Maqbool A, Parks EP, Shaikhkhalil A, Panganiban J, Groleau V, Mitchell JA, Stallings VA: Nutritional Requirements. Nelson Textbook of Pediatrics, 21st Edition. Kliegman RM, St Geme JW, Blum NJ, Shah SS, Tasker RC, Wilson KM (eds.). Elsevier, Page: 303-321, April 2019.

Parks EP, Shaikhkhalil A, Sainath N, Mitchell JA, Jefferson NB, Stallings VA: Feeding Healthy Infants, Children, and Adolescents. Nelson Textbook of Pediatrics, 21st Edition. Kliegman RM, St Geme JW, Blum NJ, Shah SS, Tasker RC, Wilson KM (eds.). Elsevier, Page: 321-331, April 2019.


Parks EP, Panganiban J, Daniels SR, Brothers J: Nutritional Considerations for Cardiometabolic Health in Childhood and Adolescent Obesity. Nutrition and Cardiometabolic Health, 1st Edition. Krauss (eds.). CRC Press, Taylor & Francis Group, November 2017.


Parks EP, Maqbool A, Shaikhkhalil A, Groleau V, Dougherty KA, Stallings VA: Nutritional Requirements. Nelson Textbook of Pediatrics 20th edition. Kliegman et al. (eds.). Elsevier, 2014.

Parks EP, Shaikhkhalil A, Groleau V, Wendel D, Stallings VA: Feeding Healthy Infants, Children, and Adolescents. Nelson Textbook of Pediatrics 20th Edition. Kliegman et al. (eds.). Elsevier, 2014.


Maqbool A, Prout E, Doughterty K, Stallings V. Adolescence. In: Bowman B, Russel, editors. Present knowledge in nutrition 10th ed. Washington DC: International Life Sciences Institute; 2011.


Kumanyika S, Holsten J, Parks EP. The socio-cultural context for obesity prevention and treatment in children and youth: influences of ethnicity and gender. In: Freemar M, editor. Pediatric obesity: etiology, pathogenesis, and treatment. New York: Springer;  2010. p. 423-36.

Posters and Presentations

Lectures by Invitation


Parks EP. Metabolic and Bariatric Surgery Updates in Adolescents: DPG Updates in Clinical Medicine, Philadelphia, PA. May 2023.

Parks EP. "Nutritional Considerations for Pediatric Patients with high BMI: How do we Manage these Children. May 2023.

Awards and Honors

2022, Philadelphia Magazine's Top Doctors in Pediatrics
2011, Nutrition Leadership Institute, Dannon Institute USA
2007, American Heart Association Early Career Development Award for Minorities
2002, Outstanding Resident Community Service Research Award, Baystate Medical Center, Springfield, MA

Editorial and Academic Positions

Editorial positions

2023-present, Ad hoc Reviewer, Appetite
2017-present, Ad Hoc Reviewer, Journal of International Medical Research
2015-present, Ad Hoc Reviewer, Childhood Obesity
2015-present, Ad Hoc Reviewer, JAMA Pediatrics
2014-present, Ad Hoc Reviewer, Clinical Science and Practice
2013-present, Appetite, Ad Hoc Reviewer
2013-present, Pediatric Obesity, Ad Hoc Reviewer
2012-present, PLOS Medicine, Ad Hoc Reviewer
2011-Present, Pediatrics, Ad Hoc Reviewer
2010-present, Health Psychology, Ad Hoc Reviewer
2009-present, Obesity, Ad Hoc Reviewer

Academic positions

2021-present, Division of Gastroenterology, Hepatology, and Nutrition Diversity Education and Inclusion Committee
2020-present, Diversity in Leadership, University of Pennsylvania
2019-present, Clinical Improvement Committee, Standardization Subcommittee
2018-present, Healthy Weight Program Community Expansion Committee
2017-present, Chair, Pediatric Obesity Medication Committee
2017-present, mHealth Research Affinity Group
2016-present, Health and Behavior Affinity Group, Scientific Review Committee
2014-present, Alliance of Minority Physicians
2012-present, Metabolic and Nutrition Research Affinity Group
2012-present, Health and Behavior Research Affinity Group
2012-present, Chair, Bariatrics Review Committee, Children's Hospital of Philadelphia-Perelman School of Medicine at University of Pennsylvania
2011-present, Chair, Healthy Weight Program Adolescent Bariatric Surgery Planning Committee
2011-present, Healthy Weight Program Clinical Care and Outreach Committee
2008-present, Nutrition Support Continuous Quality Improvement Committee

Leadership and Memberships

Memberships in professional organizations


2016-present, The Obesity Society
 - 2016-present, Clinical Committee
 - 2016-present, Subcommittee of Inappropriate Weight-Loss Therapies
 - 2016-present, Subcommittee of Obesity History and Physical for the Primary Care Physician


2016-present, American Society for Metabolic and Bariatric Surgery
2014-present, American Board of Obesity Medicine
 - 2014-present, Maintenance of Certification Committee
2010-present, Black Health Council
2007-present, American Society for Parenteral and Enteral Nutrition
2007-present, American Society for Nutrition
2007-present, American Heart Association, Council on Nutrition Metabolism and Physical Activity, Fellow
1995-present, American Academy of Pediatrics, Fellow