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Postoperative Management After Metabolic Surgery: Role of the Family Physician

This article was corrected on June 3, 2026.

Lindsay Green, MD
Christopher Dunlap, MD
Craig Glass, MD

American Family Physician. 2026;113(5):469-478.

Author disclosure: No relevant financial relationships.

This clinical content conforms to AAFP criteria for CME.

Obesity is associated with cardiometabolic risk factors and increased mortality. Treatment of obesity includes lifestyle modifications, pharmacotherapy, and surgical management with metabolic and bariatric surgery. In 2022, approximately 270,000 bariatric procedures were performed in the United States. Metabolic and bariatric surgery produces sustained weight loss and improvement in chronic conditions such as type 2 diabetes, hypertension, obstructive sleep apnea, and infertility. Family physicians are positioned to provide long-term care for patients seeking surgical attention for obesity and obesity-related complications, highlighting the importance of education regarding associated acute, subacute, and chronic complications, and changes in neurohormonal regulation that affect digestion and fertility. Improvements in obesity-related conditions should be monitored and medications adjusted as necessary. Understanding of common complications (eg, gastroesophageal reflux disease, dumping syndrome, changes in stool habits, nutritional deficiencies) and changes in cardiometabolic risk factors and fertility enables the family physician to provide comprehensive care for patients after metabolic and bariatric surgery.

Obesity is a chronic condition associated with cardiometabolic risk factors (eg, type 2 diabetes, hypertension, obstructive sleep apnea) and increased mortality.1–5 Between 2021 and 2023, the prevalence of obesity (body mass index of 30 kg/m2 or greater) and severe obesity (body mass index of 40 kg/m2 or greater) in US adults was 40.3% and 9.4%, respectively.2,6 Treatment of obesity includes lifestyle modifications, pharmacotherapy, and surgical management. Research consistently demonstrates the safety and efficacy of metabolic and bariatric surgery in treating severe obesity and obesity-related complications, with approximately 270,000 procedures performed in the United States in 2022.6–10 Neurohormonal changes after metabolic and bariatric surgery can improve cardiometabolic risk factors and fertility but may cause adverse effects requiring monitoring and intervention. Family physicians can provide comprehensive care through knowledge of complications and long-term effects of metabolic and bariatric surgery on micronutrient absorption, chronic medical conditions, and fertility.

SORT: KEY RECOMMENDATIONS FOR PRACTICE

Clinical recommendation Evidence rating Comments
After metabolic and bariatric surgery, patients should take a bariatric multivitamin daily and be screened for micronutrient and mineral deficiencies at least quarterly for 1 year, then annually thereafter.8,14,24 C Consensus guidelines
Bone mineral density screening should be performed before or soon after metabolic and bariatric surgery, with follow-up screening every 1 to 2 years, depending on the procedure and patient risk factors.8,29 C Consensus guidelines
Liraglutide (Saxenda) is effective for treating poor weight loss and suboptimal glucagon-like peptide-1 response for at least 1 year after metabolic and bariatric surgery.33,34 A Consistent findings from randomized controlled and clinical trials
The need for medication adjustment in chronic cardiometabolic conditions after metabolic and bariatric surgery should be routinely assessed.8,14,23,39 C Consensus guidelines
Patients should be educated on changes in fertility after metabolic and bariatric surgery and provided resources for contraceptive care based on their family planning goals.54,55 C Consensus guidelines

A = consistent, good-quality patient-oriented evidence; B = inconsistent or limited-quality patient-oriented evidence; C = consensus, disease-oriented evidence, usual practice, expert opinion, or case series. For information about the SORT evidence rating system, go to https://www.aafp.org/afpsort.

LINDSAY GREEN, MD, is core faculty and director of the Obstetrics Fellowship at the University of Tennessee Health Science Center Family Medicine Residency Program, Murfreesboro.

CHRISTOPHER DUNLAP, MD, is the program director of the University of Tennessee Health Science Center Family Medicine Residency Program.

CRAIG GLASS, MD, is the associate program director of the University of Tennessee Health Science Center Family Medicine Residency Program.

Address correspondence to Lindsay Green, MD, at lindsay.green@ascension.org.

Author disclosure: No relevant financial relationships.

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