William Samuel Yancy, MD

Associate Professor of Medicine
Campus mail 501 Douglas Street, Duke Diet & Fitness Center, Durham, NC 27705
Phone (919) 681-2863
Email address yancy006@mc.duke.edu

Impact of obesity on health, health care delivery, quality of life.
Diet and other weight loss interventions
Preventive medicine

Education and Training

  • Fellow in General Internal Medicine, Medicine, Duke University, 1999 - 2001
  • Chief Medical Resident, Medicine, University of Pittsburgh, 1998 - 1999
  • Medical Resident, Medicine, University of Pittsburgh, 1995 - 1998
  • M.D., East Carolina University, 1995


Westman, Eric C., and William S. Yancy. “Using a low-carbohydrate diet to treat obesity and type 2 diabetes mellitus.” Curr Opin Endocrinol Diabetes Obes 27, no. 5 (October 2020): 255–60. https://doi.org/10.1097/MED.0000000000000565.

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Voils, Corrine I., Ryan Shaw, Rachel Adler, Elizabeth Jeanes, Megan A. Lewis, Whitney Sharp, Kate A. Cronin, et al. “Protocol for Partner2Lose: A randomized controlled trial to evaluate partner involvement on long-term weight loss.” Contemp Clin Trials 96 (September 2020): 106092. https://doi.org/10.1016/j.cct.2020.106092.

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Merrill, Jennifer D., Diana Soliman, Nitya Kumar, Sooyoung Lim, Afreen I. Shariff, and William S. Yancy. “Low-Carbohydrate and Very-Low-Carbohydrate Diets in Patients With Diabetes.” Diabetes Spectr 33, no. 2 (May 2020): 133–42. https://doi.org/10.2337/ds19-0070.

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Voils, Corrine I., Kara L. Gavin, William S. Yancy, Janet Grubber, and Maren K. Olsen. “LONG-TERM EHR-MEASURED WEIGHT CHANGES FOLLOWING A RANDOMIZED CONTROLLED TRIAL OF A WEIGHT LOSS MAINTENANCE INTERVENTION.” In Annals of Behavioral Medicine, 54:S621–S621, 2020.


Mitchell, Nia S., Julia J. Scialla, and William S. Yancy. “Are low-carbohydrate diets safe in diabetic and nondiabetic chronic kidney disease?” Ann N Y Acad Sci 1461, no. 1 (February 2020): 25–36. https://doi.org/10.1111/nyas.13997.

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Smith, Valerie A., David E. Arterburn, Theodore S. Z. Berkowitz, Maren K. Olsen, Edward H. Livingston, William S. Yancy, Hollis J. Weidenbacher, and Matthew L. Maciejewski. “Association Between Bariatric Surgery and Long-term Health Care Expenditures Among Veterans With Severe Obesity.” Jama Surg 154, no. 12 (December 1, 2019): e193732. https://doi.org/10.1001/jamasurg.2019.3732.

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Yancy, William S., Matthew J. Crowley, Moahad S. Dar, Cynthia J. Coffman, Amy S. Jeffreys, Matthew L. Maciejewski, Corrine I. Voils, Anna Barton Bradley, and David Edelman. “Comparison of Group Medical Visits Combined With Intensive Weight Management vs Group Medical Visits Alone for Glycemia in Patients With Type 2 Diabetes: A Noninferiority Randomized Clinical Trial.” Jama Intern Med, November 4, 2019. https://doi.org/10.1001/jamainternmed.2019.4802.

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