EFL067
For our 67th episode, we look at a study in The Journal of Clinical Endocrinology & Metabolism that reports the impact of different types of weight-loss surgery on body composition, muscle strength, and bone density. Our patients frequently ask questions about these changes with surgical and medical weight loss, so we thought it highly worthwhile to review these findings with you all. Host Chase Hendrickson, MD, MPH, MHCC, from Vanderbilt University talks with regular contributor Andrew Kraftson, MD, from the University of Michigan, and guest expert Anne Schafer, MD, from the University of California, San Francisco. They discuss “One Year Changes in Body Composition and Musculoskeletal Health Following Metabolic/Bariatric Surgery” by Jassil et al, published in the May 2025 issue of JCEM.
Meet the Speakers
Anne Schafer, MD, is a professor of medicine and of epidemiology and biostatistics at the University of California, San Francisco and chief of endocrinology and metabolism at the San Francisco VA Health Care System. She is board-certified by the American Board of Internal Medicine in the subspecialty of endocrinology, diabetes, and metabolism. Her primary research focus is osteoporosis and bone metabolism. In particular, Dr. Schafer studies the relationships between bone, fat, and glucose metabolism, including the effects of obesity and diabetes on bone. This research program includes investigations of the effects of bariatric surgery (weight loss surgery) on calcium metabolism and skeletal health, as well as investigations of the skeletal effects of type 1 and type 2 diabetes. Dr. Schafer’s research has been funded by the National Institutes of Health, the U.S. Department of Veterans Affairs, and the American Society for Bone and Mineral Research.
Andrew T. Kraftson, MD, is a clinical associate professor in the Division of Metabolism, Endocrinology and Diabetes at the University of Michigan. He received his medical degree from the Chicago Medical School (North Chicago, IL) and completed both his internal medicine residency and chief residency at the McGaw Medical Center of Northwestern University (Evanston, IL), then underwent fellowship training in endocrinology at the University of Michigan. He joined the faculty at Michigan in 2010. Dr. Kraftson’s clinical and research interests focus on treating patients with obesity. He is the director of the Weight Navigation Program and the Post-Bariatric Endocrinology Clinic and a participating physician in the Investigational Weight Management Program. His research focuses on understanding current treatment practices for patients with excess weight and obesity and seeking to improve and personalize that care. In addition to these roles, Dr. Kraftson is the associate program director for the endocrinology fellowship program.
Everything said on the podcast represents individuals’ opinions only and not those of the participants’ institutions or of the Endocrine Society.
Resources
Meet the Host
Chase Hendrickson, MD, MPH, MMHC, practices general endocrinology at the Vanderbilt University Medical Center, where he is an associate program director for the endocrinology fellowship program. His interests include endocrine education, teaching inferential methods, and quality improvement.
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